./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72cd0a4215707a62376e213156123902caf611a87605e41064b672632b6ef1f9 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:34:25,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:34:25,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:34:25,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:34:25,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:34:25,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:34:25,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:34:25,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:34:25,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:34:25,661 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:34:25,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:34:25,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:34:25,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:34:25,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:34:25,665 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:34:25,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:34:25,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:34:25,666 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:34:25,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:34:25,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:34:25,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:34:25,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:34:25,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:34:25,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:34:25,673 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:34:25,673 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:34:25,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:34:25,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:34:25,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:34:25,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:34:25,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:34:25,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:34:25,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:34:25,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:34:25,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:34:25,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:34:25,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:34:25,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:34:25,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:34:25,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:34:25,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:34:25,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:34:25,693 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72cd0a4215707a62376e213156123902caf611a87605e41064b672632b6ef1f9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:34:26,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:34:26,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:34:26,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:34:26,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:34:26,095 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:34:26,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c [2024-09-12 18:34:27,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:34:27,967 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:34:27,968 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c [2024-09-12 18:34:27,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/02f78e6f9/166b75f2b42a48ad933db187f3d52a70/FLAG4a8c75f57 [2024-09-12 18:34:27,987 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/02f78e6f9/166b75f2b42a48ad933db187f3d52a70 [2024-09-12 18:34:27,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:34:27,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:34:27,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:34:27,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:34:27,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:34:27,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:34:27" (1/1) ... [2024-09-12 18:34:27,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7010a9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:27, skipping insertion in model container [2024-09-12 18:34:28,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:34:27" (1/1) ... [2024-09-12 18:34:28,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:34:28,183 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c[597,610] [2024-09-12 18:34:28,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:34:28,224 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:34:28,236 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c[597,610] [2024-09-12 18:34:28,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:34:28,269 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:34:28,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28 WrapperNode [2024-09-12 18:34:28,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:34:28,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:34:28,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:34:28,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:34:28,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,300 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:34:28,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:34:28,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:34:28,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:34:28,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:34:28,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,342 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:34:28,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:34:28,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:34:28,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:34:28,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:34:28,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (1/1) ... [2024-09-12 18:34:28,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:34:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:28,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:34:28,405 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:34:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:34:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:34:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:34:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:34:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:34:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:34:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:34:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:34:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:34:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:34:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:34:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:34:28,513 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:34:28,515 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:34:28,992 INFO L? ?]: Removed 135 outVars from TransFormulas that were not future-live. [2024-09-12 18:34:28,992 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:34:29,022 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:34:29,022 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:34:29,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:34:29 BoogieIcfgContainer [2024-09-12 18:34:29,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:34:29,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:34:29,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:34:29,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:34:29,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:34:27" (1/3) ... [2024-09-12 18:34:29,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9ef8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:34:29, skipping insertion in model container [2024-09-12 18:34:29,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:34:28" (2/3) ... [2024-09-12 18:34:29,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9ef8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:34:29, skipping insertion in model container [2024-09-12 18:34:29,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:34:29" (3/3) ... [2024-09-12 18:34:29,031 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound2.c [2024-09-12 18:34:29,049 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:34:29,050 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2024-09-12 18:34:29,114 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:34:29,123 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a748a97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:34:29,123 INFO L337 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-09-12 18:34:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 74 states have (on average 1.8783783783783783) internal successors, (139), 133 states have internal predecessors, (139), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:29,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:34:29,136 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:29,137 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:29,137 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:29,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1451758731, now seen corresponding path program 1 times [2024-09-12 18:34:29,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:29,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105211483] [2024-09-12 18:34:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:29,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:29,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:29,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105211483] [2024-09-12 18:34:29,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105211483] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:29,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:29,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:34:29,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590540976] [2024-09-12 18:34:29,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:29,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:34:29,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:34:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:34:29,338 INFO L87 Difference]: Start difference. First operand has 144 states, 74 states have (on average 1.8783783783783783) internal successors, (139), 133 states have internal predecessors, (139), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:29,389 INFO L93 Difference]: Finished difference Result 282 states and 299 transitions. [2024-09-12 18:34:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:34:29,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2024-09-12 18:34:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:29,412 INFO L225 Difference]: With dead ends: 282 [2024-09-12 18:34:29,412 INFO L226 Difference]: Without dead ends: 140 [2024-09-12 18:34:29,417 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:34:29,422 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:29,424 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:34:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-09-12 18:34:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-09-12 18:34:29,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 72 states have (on average 1.8472222222222223) internal successors, (133), 131 states have internal predecessors, (133), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 143 transitions. [2024-09-12 18:34:29,489 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 143 transitions. Word has length 17 [2024-09-12 18:34:29,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:29,491 INFO L474 AbstractCegarLoop]: Abstraction has 140 states and 143 transitions. [2024-09-12 18:34:29,491 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:29,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 143 transitions. [2024-09-12 18:34:29,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:34:29,493 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:29,493 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:29,494 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:34:29,494 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:29,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1058791303, now seen corresponding path program 1 times [2024-09-12 18:34:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:29,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738610954] [2024-09-12 18:34:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:29,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:29,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:29,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738610954] [2024-09-12 18:34:29,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738610954] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:29,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:29,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:34:29,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764119826] [2024-09-12 18:34:29,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:29,639 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:34:29,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:29,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:34:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:29,647 INFO L87 Difference]: Start difference. First operand 140 states and 143 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:29,927 INFO L93 Difference]: Finished difference Result 140 states and 143 transitions. [2024-09-12 18:34:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:34:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2024-09-12 18:34:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:29,930 INFO L225 Difference]: With dead ends: 140 [2024-09-12 18:34:29,930 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 18:34:29,932 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:29,933 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 90 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:29,933 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 94 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 18:34:29,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 18:34:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 72 states have (on average 1.7916666666666667) internal successors, (129), 127 states have internal predecessors, (129), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 139 transitions. [2024-09-12 18:34:29,963 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 139 transitions. Word has length 17 [2024-09-12 18:34:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:29,965 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 139 transitions. [2024-09-12 18:34:29,966 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:29,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:29,967 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 139 transitions. [2024-09-12 18:34:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:34:29,970 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:29,970 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:29,970 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:34:29,970 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:29,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1537207925, now seen corresponding path program 1 times [2024-09-12 18:34:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256127682] [2024-09-12 18:34:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:30,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:30,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256127682] [2024-09-12 18:34:30,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256127682] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:30,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:30,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:34:30,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095152930] [2024-09-12 18:34:30,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:30,060 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:34:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:30,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:34:30,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:30,061 INFO L87 Difference]: Start difference. First operand 136 states and 139 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:30,204 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2024-09-12 18:34:30,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:34:30,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 18:34:30,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:30,206 INFO L225 Difference]: With dead ends: 136 [2024-09-12 18:34:30,208 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 18:34:30,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:30,210 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 89 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:30,213 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 94 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 18:34:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-09-12 18:34:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 72 states have (on average 1.7361111111111112) internal successors, (125), 123 states have internal predecessors, (125), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2024-09-12 18:34:30,239 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 18 [2024-09-12 18:34:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:30,240 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 135 transitions. [2024-09-12 18:34:30,240 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:30,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2024-09-12 18:34:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 18:34:30,241 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:30,241 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:30,242 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:34:30,242 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:30,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash -408805367, now seen corresponding path program 1 times [2024-09-12 18:34:30,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:30,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902743300] [2024-09-12 18:34:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:30,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:30,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902743300] [2024-09-12 18:34:30,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902743300] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:30,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:30,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071606892] [2024-09-12 18:34:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:30,342 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:30,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:30,343 INFO L87 Difference]: Start difference. First operand 132 states and 135 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:34:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:30,617 INFO L93 Difference]: Finished difference Result 132 states and 135 transitions. [2024-09-12 18:34:30,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:34:30,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2024-09-12 18:34:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:30,619 INFO L225 Difference]: With dead ends: 132 [2024-09-12 18:34:30,619 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 18:34:30,620 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:30,621 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 173 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:30,621 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 94 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 18:34:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-09-12 18:34:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 72 states have (on average 1.6944444444444444) internal successors, (122), 120 states have internal predecessors, (122), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 132 transitions. [2024-09-12 18:34:30,651 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 132 transitions. Word has length 19 [2024-09-12 18:34:30,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:30,651 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 132 transitions. [2024-09-12 18:34:30,652 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:34:30,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 132 transitions. [2024-09-12 18:34:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:34:30,653 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:30,653 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:30,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:34:30,655 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:30,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash 211935565, now seen corresponding path program 1 times [2024-09-12 18:34:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929484305] [2024-09-12 18:34:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:30,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:30,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:30,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929484305] [2024-09-12 18:34:30,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929484305] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:30,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:30,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540351467] [2024-09-12 18:34:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:30,755 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:30,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:30,757 INFO L87 Difference]: Start difference. First operand 129 states and 132 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:34:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:30,968 INFO L93 Difference]: Finished difference Result 129 states and 132 transitions. [2024-09-12 18:34:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:34:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2024-09-12 18:34:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:30,972 INFO L225 Difference]: With dead ends: 129 [2024-09-12 18:34:30,972 INFO L226 Difference]: Without dead ends: 126 [2024-09-12 18:34:30,973 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:30,974 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 172 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:30,975 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 94 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-09-12 18:34:31,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-09-12 18:34:31,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.6527777777777777) internal successors, (119), 117 states have internal predecessors, (119), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 129 transitions. [2024-09-12 18:34:31,010 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 129 transitions. Word has length 20 [2024-09-12 18:34:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:31,011 INFO L474 AbstractCegarLoop]: Abstraction has 126 states and 129 transitions. [2024-09-12 18:34:31,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:34:31,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:31,015 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 129 transitions. [2024-09-12 18:34:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:34:31,015 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:31,016 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:31,016 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:34:31,016 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:31,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:31,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1806617071, now seen corresponding path program 1 times [2024-09-12 18:34:31,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:31,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553876437] [2024-09-12 18:34:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:31,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:31,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055608825] [2024-09-12 18:34:31,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:31,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:31,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:31,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:31,052 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:34:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:31,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:34:31,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:31,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:31,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553876437] [2024-09-12 18:34:31,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:31,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055608825] [2024-09-12 18:34:31,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055608825] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:31,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:31,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:34:31,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975465515] [2024-09-12 18:34:31,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:31,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:34:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:34:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:31,141 INFO L87 Difference]: Start difference. First operand 126 states and 129 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:31,265 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2024-09-12 18:34:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:34:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-09-12 18:34:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:31,267 INFO L225 Difference]: With dead ends: 191 [2024-09-12 18:34:31,267 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 18:34:31,267 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:31,269 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 57 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:31,270 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 229 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:31,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 18:34:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 151. [2024-09-12 18:34:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 96 states have (on average 1.6458333333333333) internal successors, (158), 141 states have internal predecessors, (158), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:34:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 170 transitions. [2024-09-12 18:34:31,310 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 170 transitions. Word has length 22 [2024-09-12 18:34:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:31,311 INFO L474 AbstractCegarLoop]: Abstraction has 151 states and 170 transitions. [2024-09-12 18:34:31,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:31,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:31,313 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 170 transitions. [2024-09-12 18:34:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 18:34:31,314 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:31,314 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:31,332 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:34:31,518 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:34:31,519 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:31,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash 992219793, now seen corresponding path program 1 times [2024-09-12 18:34:31,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:31,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941071516] [2024-09-12 18:34:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:31,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:31,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272938526] [2024-09-12 18:34:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:31,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:31,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:31,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:31,546 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:34:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:31,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:34:31,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:31,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:31,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:31,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941071516] [2024-09-12 18:34:31,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:31,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272938526] [2024-09-12 18:34:31,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272938526] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:31,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:31,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:34:31,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705385092] [2024-09-12 18:34:31,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:31,604 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:34:31,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:34:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:31,605 INFO L87 Difference]: Start difference. First operand 151 states and 170 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:31,780 INFO L93 Difference]: Finished difference Result 249 states and 273 transitions. [2024-09-12 18:34:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:34:31,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-09-12 18:34:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:31,783 INFO L225 Difference]: With dead ends: 249 [2024-09-12 18:34:31,783 INFO L226 Difference]: Without dead ends: 243 [2024-09-12 18:34:31,783 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:34:31,784 INFO L434 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:31,785 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 225 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-09-12 18:34:31,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 200. [2024-09-12 18:34:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 144 states have (on average 1.6527777777777777) internal successors, (238), 189 states have internal predecessors, (238), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 252 transitions. [2024-09-12 18:34:31,841 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 252 transitions. Word has length 24 [2024-09-12 18:34:31,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:31,846 INFO L474 AbstractCegarLoop]: Abstraction has 200 states and 252 transitions. [2024-09-12 18:34:31,846 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:31,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 252 transitions. [2024-09-12 18:34:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:34:31,848 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:31,848 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:31,868 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:32,048 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:34:32,049 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:32,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash 40483635, now seen corresponding path program 1 times [2024-09-12 18:34:32,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:32,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533199367] [2024-09-12 18:34:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:32,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901301356] [2024-09-12 18:34:32,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:32,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:32,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:32,071 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:32,073 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:34:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:32,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:34:32,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:32,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:32,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533199367] [2024-09-12 18:34:32,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901301356] [2024-09-12 18:34:32,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901301356] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:32,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:32,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043057948] [2024-09-12 18:34:32,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:32,143 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:32,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:32,144 INFO L87 Difference]: Start difference. First operand 200 states and 252 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:32,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:32,456 INFO L93 Difference]: Finished difference Result 269 states and 325 transitions. [2024-09-12 18:34:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:32,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-09-12 18:34:32,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:32,458 INFO L225 Difference]: With dead ends: 269 [2024-09-12 18:34:32,458 INFO L226 Difference]: Without dead ends: 267 [2024-09-12 18:34:32,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:32,459 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 123 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:32,460 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 247 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-09-12 18:34:32,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 201. [2024-09-12 18:34:32,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 145 states have (on average 1.6413793103448275) internal successors, (238), 190 states have internal predecessors, (238), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 252 transitions. [2024-09-12 18:34:32,504 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 252 transitions. Word has length 26 [2024-09-12 18:34:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:32,505 INFO L474 AbstractCegarLoop]: Abstraction has 201 states and 252 transitions. [2024-09-12 18:34:32,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:32,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 252 transitions. [2024-09-12 18:34:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:34:32,506 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:32,506 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:32,524 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:32,707 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 18:34:32,707 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:32,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:32,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1254992760, now seen corresponding path program 1 times [2024-09-12 18:34:32,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:32,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146805715] [2024-09-12 18:34:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:32,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696791403] [2024-09-12 18:34:32,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:32,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:32,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:32,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:32,723 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:34:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:32,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:34:32,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:32,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:32,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:32,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146805715] [2024-09-12 18:34:32,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:32,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696791403] [2024-09-12 18:34:32,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696791403] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:32,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:32,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:32,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197488790] [2024-09-12 18:34:32,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:32,794 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:32,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:32,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:32,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:32,795 INFO L87 Difference]: Start difference. First operand 201 states and 252 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:33,141 INFO L93 Difference]: Finished difference Result 268 states and 323 transitions. [2024-09-12 18:34:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:33,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-09-12 18:34:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:33,144 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:34:33,144 INFO L226 Difference]: Without dead ends: 266 [2024-09-12 18:34:33,145 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:33,146 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 121 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:33,147 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 250 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-09-12 18:34:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 202. [2024-09-12 18:34:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 146 states have (on average 1.63013698630137) internal successors, (238), 191 states have internal predecessors, (238), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:33,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 252 transitions. [2024-09-12 18:34:33,194 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 252 transitions. Word has length 27 [2024-09-12 18:34:33,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:33,194 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 252 transitions. [2024-09-12 18:34:33,194 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:33,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 252 transitions. [2024-09-12 18:34:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:34:33,195 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:33,196 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:33,213 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:34:33,396 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:33,396 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:33,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash 250069973, now seen corresponding path program 1 times [2024-09-12 18:34:33,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:33,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981535252] [2024-09-12 18:34:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:33,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:33,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [948288340] [2024-09-12 18:34:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:33,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:33,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:33,410 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:33,414 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:34:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:33,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:34:33,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:33,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:33,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981535252] [2024-09-12 18:34:33,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948288340] [2024-09-12 18:34:33,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948288340] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:33,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:33,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:33,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494607641] [2024-09-12 18:34:33,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:33,486 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:33,487 INFO L87 Difference]: Start difference. First operand 202 states and 252 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:33,673 INFO L93 Difference]: Finished difference Result 263 states and 283 transitions. [2024-09-12 18:34:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-09-12 18:34:33,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:33,676 INFO L225 Difference]: With dead ends: 263 [2024-09-12 18:34:33,676 INFO L226 Difference]: Without dead ends: 261 [2024-09-12 18:34:33,676 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:33,677 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 170 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:33,677 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 270 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-09-12 18:34:33,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 202. [2024-09-12 18:34:33,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 146 states have (on average 1.6095890410958904) internal successors, (235), 191 states have internal predecessors, (235), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 249 transitions. [2024-09-12 18:34:33,711 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 249 transitions. Word has length 28 [2024-09-12 18:34:33,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:33,712 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 249 transitions. [2024-09-12 18:34:33,712 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:33,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 249 transitions. [2024-09-12 18:34:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:34:33,714 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:33,714 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:33,732 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:34:33,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:34:33,915 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:33,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash -837765350, now seen corresponding path program 1 times [2024-09-12 18:34:33,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:33,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037441170] [2024-09-12 18:34:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:33,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:33,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355375895] [2024-09-12 18:34:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:33,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:33,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:33,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:33,928 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:34:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:33,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:34:33,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:34,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:34,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:34,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037441170] [2024-09-12 18:34:34,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:34,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355375895] [2024-09-12 18:34:34,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355375895] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:34,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:34,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:34,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556667495] [2024-09-12 18:34:34,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:34,003 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:34,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:34,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:34,004 INFO L87 Difference]: Start difference. First operand 202 states and 249 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:34,229 INFO L93 Difference]: Finished difference Result 261 states and 280 transitions. [2024-09-12 18:34:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:34,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-09-12 18:34:34,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:34,231 INFO L225 Difference]: With dead ends: 261 [2024-09-12 18:34:34,231 INFO L226 Difference]: Without dead ends: 259 [2024-09-12 18:34:34,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:34,232 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 167 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:34,232 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 276 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-09-12 18:34:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 202. [2024-09-12 18:34:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 146 states have (on average 1.5890410958904109) internal successors, (232), 191 states have internal predecessors, (232), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 246 transitions. [2024-09-12 18:34:34,274 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 246 transitions. Word has length 29 [2024-09-12 18:34:34,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:34,275 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 246 transitions. [2024-09-12 18:34:34,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:34,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 246 transitions. [2024-09-12 18:34:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:34:34,276 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:34,276 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:34,293 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:34:34,480 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:34:34,480 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:34,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:34,481 INFO L85 PathProgramCache]: Analyzing trace with hash -200921993, now seen corresponding path program 1 times [2024-09-12 18:34:34,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:34,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828087340] [2024-09-12 18:34:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:34,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:34,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853315397] [2024-09-12 18:34:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:34,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:34,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:34,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:34,498 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:34:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:34,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:34:34,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:34,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:34,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:34,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828087340] [2024-09-12 18:34:34,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:34,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853315397] [2024-09-12 18:34:34,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853315397] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:34,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:34,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:34:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908662893] [2024-09-12 18:34:34,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:34,579 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:34:34,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:34,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:34:34,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:34,580 INFO L87 Difference]: Start difference. First operand 202 states and 246 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:34,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:34,804 INFO L93 Difference]: Finished difference Result 263 states and 313 transitions. [2024-09-12 18:34:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:34:34,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-09-12 18:34:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:34,806 INFO L225 Difference]: With dead ends: 263 [2024-09-12 18:34:34,807 INFO L226 Difference]: Without dead ends: 261 [2024-09-12 18:34:34,807 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:34,807 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 172 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:34,808 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 250 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-09-12 18:34:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 205. [2024-09-12 18:34:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 149 states have (on average 1.570469798657718) internal successors, (234), 194 states have internal predecessors, (234), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 248 transitions. [2024-09-12 18:34:34,847 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 248 transitions. Word has length 30 [2024-09-12 18:34:34,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:34,848 INFO L474 AbstractCegarLoop]: Abstraction has 205 states and 248 transitions. [2024-09-12 18:34:34,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:34,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 248 transitions. [2024-09-12 18:34:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 18:34:34,849 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:34,849 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:34,866 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:35,049 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:35,050 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:35,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1933614404, now seen corresponding path program 1 times [2024-09-12 18:34:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646270069] [2024-09-12 18:34:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:35,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829032815] [2024-09-12 18:34:35,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:35,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:35,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:35,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:35,070 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:34:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:35,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:34:35,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:35,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:35,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:35,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646270069] [2024-09-12 18:34:35,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:35,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829032815] [2024-09-12 18:34:35,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829032815] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:35,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:35,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:34:35,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83429398] [2024-09-12 18:34:35,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:35,177 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:34:35,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:34:35,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:35,178 INFO L87 Difference]: Start difference. First operand 205 states and 248 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:35,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:35,400 INFO L93 Difference]: Finished difference Result 262 states and 279 transitions. [2024-09-12 18:34:35,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:34:35,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-09-12 18:34:35,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:35,403 INFO L225 Difference]: With dead ends: 262 [2024-09-12 18:34:35,403 INFO L226 Difference]: Without dead ends: 260 [2024-09-12 18:34:35,403 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:35,404 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 162 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:35,404 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 349 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:35,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-09-12 18:34:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 205. [2024-09-12 18:34:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 149 states have (on average 1.5503355704697988) internal successors, (231), 194 states have internal predecessors, (231), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:35,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 245 transitions. [2024-09-12 18:34:35,447 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 245 transitions. Word has length 31 [2024-09-12 18:34:35,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:35,447 INFO L474 AbstractCegarLoop]: Abstraction has 205 states and 245 transitions. [2024-09-12 18:34:35,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:35,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 245 transitions. [2024-09-12 18:34:35,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 18:34:35,448 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:35,449 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:35,465 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:34:35,649 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:35,650 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:35,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:35,650 INFO L85 PathProgramCache]: Analyzing trace with hash 187495705, now seen corresponding path program 1 times [2024-09-12 18:34:35,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:35,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521040353] [2024-09-12 18:34:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:35,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:35,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883674905] [2024-09-12 18:34:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:35,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:35,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:35,663 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:35,665 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:34:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:35,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:34:35,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:35,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:35,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:35,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521040353] [2024-09-12 18:34:35,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:35,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883674905] [2024-09-12 18:34:35,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883674905] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:35,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:35,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:34:35,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956779271] [2024-09-12 18:34:35,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:35,830 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:34:35,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:35,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:34:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:34:35,831 INFO L87 Difference]: Start difference. First operand 205 states and 245 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:36,199 INFO L93 Difference]: Finished difference Result 258 states and 307 transitions. [2024-09-12 18:34:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:34:36,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-09-12 18:34:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:36,201 INFO L225 Difference]: With dead ends: 258 [2024-09-12 18:34:36,201 INFO L226 Difference]: Without dead ends: 256 [2024-09-12 18:34:36,201 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:34:36,202 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 249 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:36,202 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 227 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-09-12 18:34:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 207. [2024-09-12 18:34:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 151 states have (on average 1.5364238410596027) internal successors, (232), 196 states have internal predecessors, (232), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 246 transitions. [2024-09-12 18:34:36,241 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 246 transitions. Word has length 32 [2024-09-12 18:34:36,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:36,241 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 246 transitions. [2024-09-12 18:34:36,241 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:36,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:36,242 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 246 transitions. [2024-09-12 18:34:36,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:34:36,242 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:36,242 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:36,259 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:34:36,446 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:34:36,447 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:36,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1517399646, now seen corresponding path program 1 times [2024-09-12 18:34:36,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:36,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441550139] [2024-09-12 18:34:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:36,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:36,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:36,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:36,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:36,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:36,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441550139] [2024-09-12 18:34:36,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441550139] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:36,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440062593] [2024-09-12 18:34:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:36,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:36,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:36,605 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:36,606 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:34:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:36,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:34:36,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:36,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:36,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440062593] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:36,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:34:36,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-09-12 18:34:36,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959469194] [2024-09-12 18:34:36,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:36,756 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:34:36,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:34:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:34:36,757 INFO L87 Difference]: Start difference. First operand 207 states and 246 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:37,208 INFO L93 Difference]: Finished difference Result 258 states and 305 transitions. [2024-09-12 18:34:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:34:37,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-09-12 18:34:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:37,210 INFO L225 Difference]: With dead ends: 258 [2024-09-12 18:34:37,210 INFO L226 Difference]: Without dead ends: 256 [2024-09-12 18:34:37,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:34:37,211 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 248 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:37,211 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 227 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:37,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-09-12 18:34:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 208. [2024-09-12 18:34:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 152 states have (on average 1.5263157894736843) internal successors, (232), 197 states have internal predecessors, (232), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:37,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 246 transitions. [2024-09-12 18:34:37,253 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 246 transitions. Word has length 33 [2024-09-12 18:34:37,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:37,254 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 246 transitions. [2024-09-12 18:34:37,254 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:34:37,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 246 transitions. [2024-09-12 18:34:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:34:37,256 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:37,256 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:37,273 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:34:37,457 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:34:37,457 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:37,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:37,458 INFO L85 PathProgramCache]: Analyzing trace with hash 322152029, now seen corresponding path program 1 times [2024-09-12 18:34:37,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:37,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864499915] [2024-09-12 18:34:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:37,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:37,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:37,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:37,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:37,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:37,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864499915] [2024-09-12 18:34:37,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864499915] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:37,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:34:37,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712067353] [2024-09-12 18:34:37,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:37,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:34:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:37,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:34:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:34:37,557 INFO L87 Difference]: Start difference. First operand 208 states and 246 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:37,864 INFO L93 Difference]: Finished difference Result 208 states and 246 transitions. [2024-09-12 18:34:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:34:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-09-12 18:34:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:37,866 INFO L225 Difference]: With dead ends: 208 [2024-09-12 18:34:37,866 INFO L226 Difference]: Without dead ends: 206 [2024-09-12 18:34:37,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:37,867 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 120 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:37,867 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 232 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-09-12 18:34:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-09-12 18:34:37,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 152 states have (on average 1.493421052631579) internal successors, (227), 195 states have internal predecessors, (227), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 241 transitions. [2024-09-12 18:34:37,916 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 241 transitions. Word has length 36 [2024-09-12 18:34:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:37,917 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 241 transitions. [2024-09-12 18:34:37,917 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:37,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 241 transitions. [2024-09-12 18:34:37,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:34:37,918 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:37,918 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:37,918 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:34:37,918 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:37,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:37,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1396778402, now seen corresponding path program 1 times [2024-09-12 18:34:37,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:37,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709061973] [2024-09-12 18:34:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:37,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395790794] [2024-09-12 18:34:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:37,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:37,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:37,932 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:37,934 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:34:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:37,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:34:37,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:38,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:38,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709061973] [2024-09-12 18:34:38,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395790794] [2024-09-12 18:34:38,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395790794] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:38,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:38,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:34:38,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131177054] [2024-09-12 18:34:38,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:38,149 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:34:38,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:38,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:34:38,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:38,149 INFO L87 Difference]: Start difference. First operand 206 states and 241 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:34:38,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:38,561 INFO L93 Difference]: Finished difference Result 250 states and 297 transitions. [2024-09-12 18:34:38,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:34:38,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2024-09-12 18:34:38,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:38,564 INFO L225 Difference]: With dead ends: 250 [2024-09-12 18:34:38,564 INFO L226 Difference]: Without dead ends: 248 [2024-09-12 18:34:38,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:34:38,565 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 377 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:38,565 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 129 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-09-12 18:34:38,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 210. [2024-09-12 18:34:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 156 states have (on average 1.4743589743589745) internal successors, (230), 199 states have internal predecessors, (230), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:38,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 244 transitions. [2024-09-12 18:34:38,615 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 244 transitions. Word has length 37 [2024-09-12 18:34:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:38,615 INFO L474 AbstractCegarLoop]: Abstraction has 210 states and 244 transitions. [2024-09-12 18:34:38,616 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:34:38,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 244 transitions. [2024-09-12 18:34:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:34:38,616 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:38,617 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:38,631 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:38,817 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:34:38,817 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:38,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash 350457599, now seen corresponding path program 1 times [2024-09-12 18:34:38,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:38,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742380382] [2024-09-12 18:34:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:38,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:38,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:38,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:38,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:38,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742380382] [2024-09-12 18:34:38,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742380382] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:38,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:38,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:38,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848528450] [2024-09-12 18:34:38,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:38,871 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:38,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:38,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:38,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:38,872 INFO L87 Difference]: Start difference. First operand 210 states and 244 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:39,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:39,222 INFO L93 Difference]: Finished difference Result 230 states and 271 transitions. [2024-09-12 18:34:39,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:39,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-09-12 18:34:39,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:39,224 INFO L225 Difference]: With dead ends: 230 [2024-09-12 18:34:39,224 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:34:39,224 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:39,225 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 95 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:39,225 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 164 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:34:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 211. [2024-09-12 18:34:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 157 states have (on average 1.464968152866242) internal successors, (230), 200 states have internal predecessors, (230), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:39,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 244 transitions. [2024-09-12 18:34:39,276 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 244 transitions. Word has length 38 [2024-09-12 18:34:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:39,276 INFO L474 AbstractCegarLoop]: Abstraction has 211 states and 244 transitions. [2024-09-12 18:34:39,276 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:39,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 244 transitions. [2024-09-12 18:34:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:34:39,277 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:39,277 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:39,277 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:34:39,278 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:39,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:39,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2020716220, now seen corresponding path program 1 times [2024-09-12 18:34:39,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:39,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421467134] [2024-09-12 18:34:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:39,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:39,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:39,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:39,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421467134] [2024-09-12 18:34:39,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421467134] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:39,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:39,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:39,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101810093] [2024-09-12 18:34:39,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:39,333 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:39,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:39,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:39,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:39,335 INFO L87 Difference]: Start difference. First operand 211 states and 244 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:39,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:39,683 INFO L93 Difference]: Finished difference Result 230 states and 269 transitions. [2024-09-12 18:34:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:34:39,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-09-12 18:34:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:39,685 INFO L225 Difference]: With dead ends: 230 [2024-09-12 18:34:39,685 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:34:39,685 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:39,686 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 69 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:39,686 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 177 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:34:39,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212. [2024-09-12 18:34:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 158 states have (on average 1.4556962025316456) internal successors, (230), 201 states have internal predecessors, (230), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 244 transitions. [2024-09-12 18:34:39,739 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 244 transitions. Word has length 39 [2024-09-12 18:34:39,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:39,739 INFO L474 AbstractCegarLoop]: Abstraction has 212 states and 244 transitions. [2024-09-12 18:34:39,739 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:39,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:39,739 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 244 transitions. [2024-09-12 18:34:39,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:34:39,740 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:39,740 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:39,740 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:34:39,740 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:39,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:39,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1977718156, now seen corresponding path program 1 times [2024-09-12 18:34:39,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:39,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927889728] [2024-09-12 18:34:39,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:39,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762859422] [2024-09-12 18:34:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:39,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:39,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:39,754 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:39,756 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:34:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:39,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:34:39,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:39,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:39,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:39,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927889728] [2024-09-12 18:34:39,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:39,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762859422] [2024-09-12 18:34:39,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762859422] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:39,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:39,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:34:39,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636227068] [2024-09-12 18:34:39,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:39,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:34:39,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:39,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:34:39,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:39,979 INFO L87 Difference]: Start difference. First operand 212 states and 244 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:40,547 INFO L93 Difference]: Finished difference Result 236 states and 272 transitions. [2024-09-12 18:34:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:34:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2024-09-12 18:34:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:40,549 INFO L225 Difference]: With dead ends: 236 [2024-09-12 18:34:40,549 INFO L226 Difference]: Without dead ends: 209 [2024-09-12 18:34:40,549 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:34:40,551 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 115 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:40,551 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 300 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:34:40,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-12 18:34:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2024-09-12 18:34:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 143 states have (on average 1.4965034965034965) internal successors, (214), 186 states have internal predecessors, (214), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 228 transitions. [2024-09-12 18:34:40,607 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 228 transitions. Word has length 43 [2024-09-12 18:34:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:40,607 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 228 transitions. [2024-09-12 18:34:40,607 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:34:40,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 228 transitions. [2024-09-12 18:34:40,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:34:40,608 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:40,608 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:40,625 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:40,809 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 18:34:40,810 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:40,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1853783347, now seen corresponding path program 1 times [2024-09-12 18:34:40,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:40,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371754064] [2024-09-12 18:34:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:40,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:40,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:40,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:40,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:34:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:40,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:40,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371754064] [2024-09-12 18:34:40,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371754064] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:40,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:40,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:34:40,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284067386] [2024-09-12 18:34:40,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:40,895 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:34:40,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:40,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:34:40,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:40,896 INFO L87 Difference]: Start difference. First operand 198 states and 228 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:41,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:41,167 INFO L93 Difference]: Finished difference Result 211 states and 244 transitions. [2024-09-12 18:34:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:41,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2024-09-12 18:34:41,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:41,169 INFO L225 Difference]: With dead ends: 211 [2024-09-12 18:34:41,169 INFO L226 Difference]: Without dead ends: 209 [2024-09-12 18:34:41,170 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:41,170 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 244 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:41,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 150 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:41,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-12 18:34:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2024-09-12 18:34:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 152 states have (on average 1.4736842105263157) internal successors, (224), 195 states have internal predecessors, (224), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 238 transitions. [2024-09-12 18:34:41,236 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 238 transitions. Word has length 49 [2024-09-12 18:34:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:41,236 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 238 transitions. [2024-09-12 18:34:41,237 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:34:41,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 238 transitions. [2024-09-12 18:34:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:34:41,237 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:41,238 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:41,238 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:34:41,238 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:41,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:41,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1632708793, now seen corresponding path program 1 times [2024-09-12 18:34:41,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:41,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399945477] [2024-09-12 18:34:41,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:41,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:34:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:41,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:41,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399945477] [2024-09-12 18:34:41,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399945477] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:41,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:41,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:41,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538797963] [2024-09-12 18:34:41,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:41,332 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:41,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:41,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:41,333 INFO L87 Difference]: Start difference. First operand 207 states and 238 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:41,493 INFO L93 Difference]: Finished difference Result 207 states and 238 transitions. [2024-09-12 18:34:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:34:41,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2024-09-12 18:34:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:41,495 INFO L225 Difference]: With dead ends: 207 [2024-09-12 18:34:41,495 INFO L226 Difference]: Without dead ends: 206 [2024-09-12 18:34:41,496 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:41,497 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 66 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:41,498 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 166 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-09-12 18:34:41,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-09-12 18:34:41,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 152 states have (on average 1.4605263157894737) internal successors, (222), 194 states have internal predecessors, (222), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 236 transitions. [2024-09-12 18:34:41,567 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 236 transitions. Word has length 50 [2024-09-12 18:34:41,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:41,568 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 236 transitions. [2024-09-12 18:34:41,568 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:41,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:41,568 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 236 transitions. [2024-09-12 18:34:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:34:41,569 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:41,569 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:41,569 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 18:34:41,569 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:41,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:41,569 INFO L85 PathProgramCache]: Analyzing trace with hash -789146477, now seen corresponding path program 1 times [2024-09-12 18:34:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:41,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566928338] [2024-09-12 18:34:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:34:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:41,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:41,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566928338] [2024-09-12 18:34:41,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566928338] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:41,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:41,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:34:41,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062502679] [2024-09-12 18:34:41,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:41,662 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:34:41,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:41,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:34:41,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:34:41,663 INFO L87 Difference]: Start difference. First operand 206 states and 236 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:34:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:41,926 INFO L93 Difference]: Finished difference Result 209 states and 239 transitions. [2024-09-12 18:34:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:34:41,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2024-09-12 18:34:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:41,928 INFO L225 Difference]: With dead ends: 209 [2024-09-12 18:34:41,928 INFO L226 Difference]: Without dead ends: 208 [2024-09-12 18:34:41,928 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:34:41,929 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 134 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:41,929 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 197 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:41,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-09-12 18:34:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2024-09-12 18:34:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 153 states have (on average 1.457516339869281) internal successors, (223), 195 states have internal predecessors, (223), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 237 transitions. [2024-09-12 18:34:41,993 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 237 transitions. Word has length 52 [2024-09-12 18:34:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:41,993 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 237 transitions. [2024-09-12 18:34:41,993 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:34:41,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 237 transitions. [2024-09-12 18:34:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:34:41,994 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:41,994 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:41,994 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 18:34:41,995 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:41,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1370082679, now seen corresponding path program 1 times [2024-09-12 18:34:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:41,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360307468] [2024-09-12 18:34:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:34:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:42,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:42,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360307468] [2024-09-12 18:34:42,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360307468] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:42,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:42,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:42,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857551328] [2024-09-12 18:34:42,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:42,058 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:42,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:42,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:42,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:42,059 INFO L87 Difference]: Start difference. First operand 207 states and 237 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:42,259 INFO L93 Difference]: Finished difference Result 220 states and 252 transitions. [2024-09-12 18:34:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:34:42,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-09-12 18:34:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:42,261 INFO L225 Difference]: With dead ends: 220 [2024-09-12 18:34:42,261 INFO L226 Difference]: Without dead ends: 218 [2024-09-12 18:34:42,261 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:42,262 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 12 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:42,262 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 342 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:42,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-09-12 18:34:42,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2024-09-12 18:34:42,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 162 states have (on average 1.4444444444444444) internal successors, (234), 204 states have internal predecessors, (234), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:42,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 248 transitions. [2024-09-12 18:34:42,333 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 248 transitions. Word has length 52 [2024-09-12 18:34:42,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:42,333 INFO L474 AbstractCegarLoop]: Abstraction has 216 states and 248 transitions. [2024-09-12 18:34:42,334 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:42,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:42,334 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 248 transitions. [2024-09-12 18:34:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:34:42,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:42,335 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:42,335 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-09-12 18:34:42,335 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:42,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:42,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1306263121, now seen corresponding path program 1 times [2024-09-12 18:34:42,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:42,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112486701] [2024-09-12 18:34:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:42,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:34:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:42,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:42,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112486701] [2024-09-12 18:34:42,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112486701] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:42,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:42,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:34:42,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577872945] [2024-09-12 18:34:42,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:42,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:34:42,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:42,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:34:42,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:42,416 INFO L87 Difference]: Start difference. First operand 216 states and 248 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:42,554 INFO L93 Difference]: Finished difference Result 254 states and 265 transitions. [2024-09-12 18:34:42,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:34:42,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2024-09-12 18:34:42,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:42,556 INFO L225 Difference]: With dead ends: 254 [2024-09-12 18:34:42,556 INFO L226 Difference]: Without dead ends: 252 [2024-09-12 18:34:42,556 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:34:42,556 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 57 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:42,557 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 326 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:34:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-09-12 18:34:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 224. [2024-09-12 18:34:42,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 170 states have (on average 1.423529411764706) internal successors, (242), 212 states have internal predecessors, (242), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2024-09-12 18:34:42,626 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 53 [2024-09-12 18:34:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:42,626 INFO L474 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2024-09-12 18:34:42,627 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:42,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2024-09-12 18:34:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:34:42,627 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:42,627 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:42,628 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-12 18:34:42,628 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:42,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:42,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1058739643, now seen corresponding path program 1 times [2024-09-12 18:34:42,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:42,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092636271] [2024-09-12 18:34:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:42,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:42,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678461523] [2024-09-12 18:34:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:42,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:42,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:42,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:42,647 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:34:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:42,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:34:42,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:42,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:34:42,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092636271] [2024-09-12 18:34:42,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678461523] [2024-09-12 18:34:42,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678461523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:34:42,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:34:42,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:34:42,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930412109] [2024-09-12 18:34:42,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:34:42,897 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:34:42,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:42,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:34:42,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:34:42,898 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:43,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:43,184 INFO L93 Difference]: Finished difference Result 224 states and 256 transitions. [2024-09-12 18:34:43,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:34:43,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-09-12 18:34:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:43,187 INFO L225 Difference]: With dead ends: 224 [2024-09-12 18:34:43,187 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:34:43,187 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:34:43,188 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 115 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:43,188 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 368 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:34:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-09-12 18:34:43,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 170 states have (on average 1.388235294117647) internal successors, (236), 209 states have internal predecessors, (236), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:34:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 250 transitions. [2024-09-12 18:34:43,268 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 250 transitions. Word has length 55 [2024-09-12 18:34:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:43,268 INFO L474 AbstractCegarLoop]: Abstraction has 221 states and 250 transitions. [2024-09-12 18:34:43,268 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:43,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:43,269 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 250 transitions. [2024-09-12 18:34:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:34:43,269 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:43,269 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:43,286 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:34:43,473 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:34:43,474 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:43,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1538809502, now seen corresponding path program 1 times [2024-09-12 18:34:43,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:43,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234960067] [2024-09-12 18:34:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:43,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:43,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538979427] [2024-09-12 18:34:43,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:43,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:43,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:43,488 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:43,490 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:34:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:43,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:34:43,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:43,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234960067] [2024-09-12 18:34:44,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538979427] [2024-09-12 18:34:44,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538979427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:44,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:34:44,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:34:44,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294753179] [2024-09-12 18:34:44,596 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:44,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:34:44,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:34:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:34:44,597 INFO L87 Difference]: Start difference. First operand 221 states and 250 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:34:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:45,199 INFO L93 Difference]: Finished difference Result 268 states and 306 transitions. [2024-09-12 18:34:45,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:34:45,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-09-12 18:34:45,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:45,201 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:34:45,201 INFO L226 Difference]: Without dead ends: 266 [2024-09-12 18:34:45,202 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:34:45,202 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 210 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:45,202 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 443 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:34:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-09-12 18:34:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 246. [2024-09-12 18:34:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 194 states have (on average 1.3865979381443299) internal successors, (269), 233 states have internal predecessors, (269), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:34:45,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 285 transitions. [2024-09-12 18:34:45,284 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 285 transitions. Word has length 56 [2024-09-12 18:34:45,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:45,284 INFO L474 AbstractCegarLoop]: Abstraction has 246 states and 285 transitions. [2024-09-12 18:34:45,285 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:34:45,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:45,285 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 285 transitions. [2024-09-12 18:34:45,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:34:45,286 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:45,286 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:45,298 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:45,486 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:34:45,487 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:45,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1806974839, now seen corresponding path program 1 times [2024-09-12 18:34:45,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:45,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459294765] [2024-09-12 18:34:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:45,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031660568] [2024-09-12 18:34:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:45,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:45,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:45,500 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:45,502 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:34:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:45,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:34:45,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:45,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:45,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:45,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459294765] [2024-09-12 18:34:45,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:45,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031660568] [2024-09-12 18:34:45,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031660568] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:45,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:45,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-09-12 18:34:45,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095705544] [2024-09-12 18:34:45,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:45,968 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:34:45,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:45,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:34:45,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:34:45,970 INFO L87 Difference]: Start difference. First operand 246 states and 285 transitions. Second operand has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:34:46,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:46,801 INFO L93 Difference]: Finished difference Result 369 states and 439 transitions. [2024-09-12 18:34:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:34:46,801 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 59 [2024-09-12 18:34:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:46,803 INFO L225 Difference]: With dead ends: 369 [2024-09-12 18:34:46,803 INFO L226 Difference]: Without dead ends: 363 [2024-09-12 18:34:46,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:34:46,804 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 519 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:46,805 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 412 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:34:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-09-12 18:34:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 273. [2024-09-12 18:34:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 222 states have (on average 1.3738738738738738) internal successors, (305), 259 states have internal predecessors, (305), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:34:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 323 transitions. [2024-09-12 18:34:46,929 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 323 transitions. Word has length 59 [2024-09-12 18:34:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:46,929 INFO L474 AbstractCegarLoop]: Abstraction has 273 states and 323 transitions. [2024-09-12 18:34:46,929 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:34:46,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 323 transitions. [2024-09-12 18:34:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:34:46,930 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:46,930 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:46,944 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:47,131 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:34:47,131 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:47,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:47,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2145299303, now seen corresponding path program 1 times [2024-09-12 18:34:47,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:47,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194688639] [2024-09-12 18:34:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:47,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234030721] [2024-09-12 18:34:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:47,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:47,155 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:47,157 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:34:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:47,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:34:47,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:47,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:47,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194688639] [2024-09-12 18:34:47,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234030721] [2024-09-12 18:34:47,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234030721] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:47,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:34:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:34:47,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713655744] [2024-09-12 18:34:47,533 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:47,533 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:34:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:47,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:34:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:34:47,535 INFO L87 Difference]: Start difference. First operand 273 states and 323 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:47,948 INFO L93 Difference]: Finished difference Result 284 states and 328 transitions. [2024-09-12 18:34:47,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:34:47,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2024-09-12 18:34:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:47,951 INFO L225 Difference]: With dead ends: 284 [2024-09-12 18:34:47,951 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 18:34:47,951 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:34:47,952 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:47,952 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 412 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 18:34:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 269. [2024-09-12 18:34:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 222 states have (on average 1.3468468468468469) internal successors, (299), 255 states have internal predecessors, (299), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:34:48,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 317 transitions. [2024-09-12 18:34:48,059 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 317 transitions. Word has length 61 [2024-09-12 18:34:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:48,059 INFO L474 AbstractCegarLoop]: Abstraction has 269 states and 317 transitions. [2024-09-12 18:34:48,059 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:48,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:48,060 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 317 transitions. [2024-09-12 18:34:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:34:48,060 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:48,061 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:48,079 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:34:48,261 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:48,261 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:48,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2079768882, now seen corresponding path program 1 times [2024-09-12 18:34:48,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:48,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697678444] [2024-09-12 18:34:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:48,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1995113306] [2024-09-12 18:34:48,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:48,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:48,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:48,277 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:48,278 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:34:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:48,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:34:48,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:48,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:49,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697678444] [2024-09-12 18:34:49,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995113306] [2024-09-12 18:34:49,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995113306] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:49,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:34:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:34:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959370685] [2024-09-12 18:34:49,181 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:49,181 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:34:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:34:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:34:49,182 INFO L87 Difference]: Start difference. First operand 269 states and 317 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:34:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:49,652 INFO L93 Difference]: Finished difference Result 354 states and 414 transitions. [2024-09-12 18:34:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:34:49,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 62 [2024-09-12 18:34:49,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:49,654 INFO L225 Difference]: With dead ends: 354 [2024-09-12 18:34:49,655 INFO L226 Difference]: Without dead ends: 352 [2024-09-12 18:34:49,655 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:34:49,655 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 401 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:49,656 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 362 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-09-12 18:34:49,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 308. [2024-09-12 18:34:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 260 states have (on average 1.376923076923077) internal successors, (358), 293 states have internal predecessors, (358), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:34:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 378 transitions. [2024-09-12 18:34:49,789 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 378 transitions. Word has length 62 [2024-09-12 18:34:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:49,789 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 378 transitions. [2024-09-12 18:34:49,790 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:34:49,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 378 transitions. [2024-09-12 18:34:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:34:49,790 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:49,791 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:49,808 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:49,991 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:49,991 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:49,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:49,992 INFO L85 PathProgramCache]: Analyzing trace with hash 270112461, now seen corresponding path program 1 times [2024-09-12 18:34:49,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:49,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13284697] [2024-09-12 18:34:49,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:49,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:50,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483752806] [2024-09-12 18:34:50,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:50,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:50,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:50,006 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:50,007 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:34:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:50,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:34:50,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-12 18:34:50,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-12 18:34:50,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:50,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13284697] [2024-09-12 18:34:50,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:50,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483752806] [2024-09-12 18:34:50,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483752806] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:50,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:50,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-09-12 18:34:50,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238756172] [2024-09-12 18:34:50,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:50,175 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:34:50,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:50,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:34:50,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:34:50,176 INFO L87 Difference]: Start difference. First operand 308 states and 378 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:50,551 INFO L93 Difference]: Finished difference Result 351 states and 408 transitions. [2024-09-12 18:34:50,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:34:50,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2024-09-12 18:34:50,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:50,553 INFO L225 Difference]: With dead ends: 351 [2024-09-12 18:34:50,553 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 18:34:50,554 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:34:50,554 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 233 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:50,554 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 244 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:34:50,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 18:34:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 308. [2024-09-12 18:34:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 260 states have (on average 1.3653846153846154) internal successors, (355), 293 states have internal predecessors, (355), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:34:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 375 transitions. [2024-09-12 18:34:50,686 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 375 transitions. Word has length 63 [2024-09-12 18:34:50,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:50,686 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 375 transitions. [2024-09-12 18:34:50,686 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:34:50,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 375 transitions. [2024-09-12 18:34:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:34:50,687 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:50,688 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:50,712 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:50,888 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:50,888 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:50,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:50,889 INFO L85 PathProgramCache]: Analyzing trace with hash 803520989, now seen corresponding path program 1 times [2024-09-12 18:34:50,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:50,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275370421] [2024-09-12 18:34:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:50,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:50,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900346423] [2024-09-12 18:34:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:50,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:50,902 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:50,909 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:34:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:50,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:34:50,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:51,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:51,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275370421] [2024-09-12 18:34:51,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900346423] [2024-09-12 18:34:51,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900346423] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:51,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:51,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-09-12 18:34:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424630602] [2024-09-12 18:34:51,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:51,320 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:34:51,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:34:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:34:51,321 INFO L87 Difference]: Start difference. First operand 308 states and 375 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:34:52,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:52,788 INFO L93 Difference]: Finished difference Result 450 states and 514 transitions. [2024-09-12 18:34:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:34:52,788 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 65 [2024-09-12 18:34:52,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:52,790 INFO L225 Difference]: With dead ends: 450 [2024-09-12 18:34:52,790 INFO L226 Difference]: Without dead ends: 448 [2024-09-12 18:34:52,791 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:34:52,791 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 806 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:52,792 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 535 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:34:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-09-12 18:34:52,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 345. [2024-09-12 18:34:52,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 296 states have (on average 1.3716216216216217) internal successors, (406), 329 states have internal predecessors, (406), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:34:52,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 428 transitions. [2024-09-12 18:34:52,928 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 428 transitions. Word has length 65 [2024-09-12 18:34:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:52,929 INFO L474 AbstractCegarLoop]: Abstraction has 345 states and 428 transitions. [2024-09-12 18:34:52,929 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:34:52,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 428 transitions. [2024-09-12 18:34:52,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:34:52,930 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:52,930 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:52,949 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:53,131 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:34:53,131 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:53,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1880039919, now seen corresponding path program 1 times [2024-09-12 18:34:53,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:53,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954473443] [2024-09-12 18:34:53,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:53,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:53,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596398142] [2024-09-12 18:34:53,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:53,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:53,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:53,145 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:53,147 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:34:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:53,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 18:34:53,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:53,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:54,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:54,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954473443] [2024-09-12 18:34:54,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:54,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596398142] [2024-09-12 18:34:54,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596398142] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:54,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:54,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-09-12 18:34:54,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451486688] [2024-09-12 18:34:54,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:54,126 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:34:54,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:34:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:34:54,127 INFO L87 Difference]: Start difference. First operand 345 states and 428 transitions. Second operand has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 19 states have internal predecessors, (100), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:34:55,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:55,540 INFO L93 Difference]: Finished difference Result 414 states and 507 transitions. [2024-09-12 18:34:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:34:55,541 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 19 states have internal predecessors, (100), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 65 [2024-09-12 18:34:55,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:55,542 INFO L225 Difference]: With dead ends: 414 [2024-09-12 18:34:55,543 INFO L226 Difference]: Without dead ends: 412 [2024-09-12 18:34:55,543 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=1115, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:34:55,543 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 763 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:55,544 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 382 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:34:55,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-09-12 18:34:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 350. [2024-09-12 18:34:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 301 states have (on average 1.3588039867109634) internal successors, (409), 334 states have internal predecessors, (409), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:34:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 431 transitions. [2024-09-12 18:34:55,672 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 431 transitions. Word has length 65 [2024-09-12 18:34:55,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:55,672 INFO L474 AbstractCegarLoop]: Abstraction has 350 states and 431 transitions. [2024-09-12 18:34:55,672 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 19 states have internal predecessors, (100), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:34:55,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:55,673 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 431 transitions. [2024-09-12 18:34:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:34:55,673 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:55,674 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:55,686 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:55,874 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:34:55,874 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:55,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:55,875 INFO L85 PathProgramCache]: Analyzing trace with hash -860653038, now seen corresponding path program 1 times [2024-09-12 18:34:55,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:55,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920788951] [2024-09-12 18:34:55,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:55,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:55,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954802589] [2024-09-12 18:34:55,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:55,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:55,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:55,893 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:55,901 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:34:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:55,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:34:55,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:56,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:34:56,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:56,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920788951] [2024-09-12 18:34:56,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:56,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954802589] [2024-09-12 18:34:56,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954802589] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:56,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:56,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-09-12 18:34:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261111552] [2024-09-12 18:34:56,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:56,679 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:34:56,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:56,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:34:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:34:56,680 INFO L87 Difference]: Start difference. First operand 350 states and 431 transitions. Second operand has 16 states, 15 states have (on average 7.0) internal successors, (105), 16 states have internal predecessors, (105), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:34:57,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:57,832 INFO L93 Difference]: Finished difference Result 452 states and 513 transitions. [2024-09-12 18:34:57,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:34:57,832 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.0) internal successors, (105), 16 states have internal predecessors, (105), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 66 [2024-09-12 18:34:57,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:57,834 INFO L225 Difference]: With dead ends: 452 [2024-09-12 18:34:57,834 INFO L226 Difference]: Without dead ends: 450 [2024-09-12 18:34:57,835 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:34:57,835 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 1321 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:57,836 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 609 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:34:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-09-12 18:34:57,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 350. [2024-09-12 18:34:57,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 301 states have (on average 1.345514950166113) internal successors, (405), 334 states have internal predecessors, (405), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:34:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 427 transitions. [2024-09-12 18:34:57,968 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 427 transitions. Word has length 66 [2024-09-12 18:34:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:57,969 INFO L474 AbstractCegarLoop]: Abstraction has 350 states and 427 transitions. [2024-09-12 18:34:57,969 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.0) internal successors, (105), 16 states have internal predecessors, (105), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:34:57,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 427 transitions. [2024-09-12 18:34:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:34:57,970 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:57,970 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:57,985 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:34:58,170 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:58,171 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:58,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:58,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1848304568, now seen corresponding path program 1 times [2024-09-12 18:34:58,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:58,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540727784] [2024-09-12 18:34:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:58,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:58,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:58,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:34:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:58,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:34:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:58,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:34:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:58,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:58,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540727784] [2024-09-12 18:34:58,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540727784] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:58,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270790531] [2024-09-12 18:34:58,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:58,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:58,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:58,259 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:58,261 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:34:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:58,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:34:58,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:58,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270790531] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:58,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:34:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-12 18:34:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206424472] [2024-09-12 18:34:58,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:58,426 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:34:58,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:58,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:34:58,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:34:58,427 INFO L87 Difference]: Start difference. First operand 350 states and 427 transitions. Second operand has 11 states, 10 states have (on average 12.6) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:34:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:58,849 INFO L93 Difference]: Finished difference Result 350 states and 427 transitions. [2024-09-12 18:34:58,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:34:58,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.6) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 66 [2024-09-12 18:34:58,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:58,852 INFO L225 Difference]: With dead ends: 350 [2024-09-12 18:34:58,852 INFO L226 Difference]: Without dead ends: 348 [2024-09-12 18:34:58,852 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:34:58,852 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 207 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:58,853 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 418 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:34:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-09-12 18:34:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-09-12 18:34:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 301 states have (on average 1.318936877076412) internal successors, (397), 332 states have internal predecessors, (397), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:34:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 419 transitions. [2024-09-12 18:34:58,981 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 419 transitions. Word has length 66 [2024-09-12 18:34:58,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:58,981 INFO L474 AbstractCegarLoop]: Abstraction has 348 states and 419 transitions. [2024-09-12 18:34:58,982 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.6) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:34:58,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 419 transitions. [2024-09-12 18:34:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:34:58,983 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:58,983 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:58,995 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 18:34:59,183 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:34:59,184 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:34:59,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:59,184 INFO L85 PathProgramCache]: Analyzing trace with hash -910440321, now seen corresponding path program 1 times [2024-09-12 18:34:59,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:59,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515312689] [2024-09-12 18:34:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:59,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:34:59,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072267754] [2024-09-12 18:34:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:59,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:59,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:59,198 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:59,203 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:34:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:59,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:34:59,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:59,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:34:59,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:59,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515312689] [2024-09-12 18:34:59,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:59,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072267754] [2024-09-12 18:34:59,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072267754] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:34:59,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:59,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-12 18:34:59,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926968575] [2024-09-12 18:34:59,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:59,787 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:34:59,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:59,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:34:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:34:59,788 INFO L87 Difference]: Start difference. First operand 348 states and 419 transitions. Second operand has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:02,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:02,284 INFO L93 Difference]: Finished difference Result 540 states and 661 transitions. [2024-09-12 18:35:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:35:02,284 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 67 [2024-09-12 18:35:02,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:02,286 INFO L225 Difference]: With dead ends: 540 [2024-09-12 18:35:02,287 INFO L226 Difference]: Without dead ends: 538 [2024-09-12 18:35:02,287 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=907, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:35:02,287 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 426 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:02,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 503 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:35:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-09-12 18:35:02,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 427. [2024-09-12 18:35:02,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 378 states have (on average 1.335978835978836) internal successors, (505), 409 states have internal predecessors, (505), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:35:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 531 transitions. [2024-09-12 18:35:02,474 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 531 transitions. Word has length 67 [2024-09-12 18:35:02,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:02,475 INFO L474 AbstractCegarLoop]: Abstraction has 427 states and 531 transitions. [2024-09-12 18:35:02,475 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:02,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:02,475 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 531 transitions. [2024-09-12 18:35:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:35:02,476 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:02,476 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:02,493 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:02,680 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:35:02,681 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:02,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1841121204, now seen corresponding path program 1 times [2024-09-12 18:35:02,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:02,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270074428] [2024-09-12 18:35:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:02,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:02,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732384836] [2024-09-12 18:35:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:02,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:02,694 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:02,696 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:35:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:02,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:35:02,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:35:03,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:04,467 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:35:04,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:04,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270074428] [2024-09-12 18:35:04,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:04,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732384836] [2024-09-12 18:35:04,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732384836] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:04,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:04,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2024-09-12 18:35:04,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274649439] [2024-09-12 18:35:04,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:04,468 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:35:04,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:04,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:35:04,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:35:04,469 INFO L87 Difference]: Start difference. First operand 427 states and 531 transitions. Second operand has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:35:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:10,664 INFO L93 Difference]: Finished difference Result 579 states and 716 transitions. [2024-09-12 18:35:10,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-09-12 18:35:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-09-12 18:35:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:10,668 INFO L225 Difference]: With dead ends: 579 [2024-09-12 18:35:10,668 INFO L226 Difference]: Without dead ends: 574 [2024-09-12 18:35:10,669 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=665, Invalid=3367, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:35:10,669 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 741 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:10,669 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 504 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-09-12 18:35:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-09-12 18:35:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 460. [2024-09-12 18:35:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 411 states have (on average 1.3211678832116789) internal successors, (543), 442 states have internal predecessors, (543), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:35:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 569 transitions. [2024-09-12 18:35:10,885 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 569 transitions. Word has length 68 [2024-09-12 18:35:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:10,885 INFO L474 AbstractCegarLoop]: Abstraction has 460 states and 569 transitions. [2024-09-12 18:35:10,885 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:35:10,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 569 transitions. [2024-09-12 18:35:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:35:10,886 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:10,886 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:10,903 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:11,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:35:11,087 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:11,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:11,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1240182561, now seen corresponding path program 1 times [2024-09-12 18:35:11,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:11,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079105238] [2024-09-12 18:35:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:11,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:11,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034711068] [2024-09-12 18:35:11,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:11,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:11,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:11,107 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:11,109 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:35:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:11,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:35:11,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:35:11,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:11,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079105238] [2024-09-12 18:35:11,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034711068] [2024-09-12 18:35:11,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034711068] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:11,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:11,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2024-09-12 18:35:11,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378232913] [2024-09-12 18:35:11,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:11,940 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:35:11,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:11,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:35:11,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:35:11,941 INFO L87 Difference]: Start difference. First operand 460 states and 569 transitions. Second operand has 18 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:35:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:13,856 INFO L93 Difference]: Finished difference Result 544 states and 665 transitions. [2024-09-12 18:35:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 18:35:13,856 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69 [2024-09-12 18:35:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:13,859 INFO L225 Difference]: With dead ends: 544 [2024-09-12 18:35:13,859 INFO L226 Difference]: Without dead ends: 542 [2024-09-12 18:35:13,859 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=430, Invalid=1462, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:35:13,860 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 590 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:13,860 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 575 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:35:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-09-12 18:35:14,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 463. [2024-09-12 18:35:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 414 states have (on average 1.3140096618357489) internal successors, (544), 445 states have internal predecessors, (544), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:35:14,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 570 transitions. [2024-09-12 18:35:14,097 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 570 transitions. Word has length 69 [2024-09-12 18:35:14,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:14,097 INFO L474 AbstractCegarLoop]: Abstraction has 463 states and 570 transitions. [2024-09-12 18:35:14,097 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:35:14,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:14,097 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 570 transitions. [2024-09-12 18:35:14,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:35:14,098 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:14,098 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:14,110 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 18:35:14,298 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:35:14,299 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:14,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:14,299 INFO L85 PathProgramCache]: Analyzing trace with hash 772247180, now seen corresponding path program 1 times [2024-09-12 18:35:14,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:14,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505925453] [2024-09-12 18:35:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:14,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:14,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:14,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:14,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:14,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:14,370 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:14,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:14,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505925453] [2024-09-12 18:35:14,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505925453] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:14,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85869738] [2024-09-12 18:35:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:14,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:14,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:14,372 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:14,375 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:35:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:14,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:35:14,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:14,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:14,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85869738] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:14,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:14,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 18:35:14,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846352086] [2024-09-12 18:35:14,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:14,626 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:35:14,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:14,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:35:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:35:14,629 INFO L87 Difference]: Start difference. First operand 463 states and 570 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:15,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:15,394 INFO L93 Difference]: Finished difference Result 626 states and 789 transitions. [2024-09-12 18:35:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:35:15,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 70 [2024-09-12 18:35:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:15,397 INFO L225 Difference]: With dead ends: 626 [2024-09-12 18:35:15,397 INFO L226 Difference]: Without dead ends: 624 [2024-09-12 18:35:15,397 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:35:15,397 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 184 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:15,397 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 270 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:15,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-09-12 18:35:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 591. [2024-09-12 18:35:15,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 539 states have (on average 1.3432282003710576) internal successors, (724), 570 states have internal predecessors, (724), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:35:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 756 transitions. [2024-09-12 18:35:15,703 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 756 transitions. Word has length 70 [2024-09-12 18:35:15,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:15,703 INFO L474 AbstractCegarLoop]: Abstraction has 591 states and 756 transitions. [2024-09-12 18:35:15,703 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:15,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 756 transitions. [2024-09-12 18:35:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:35:15,704 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:15,704 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:15,718 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:15,905 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:15,905 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:15,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1830141099, now seen corresponding path program 1 times [2024-09-12 18:35:15,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:15,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677393322] [2024-09-12 18:35:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:15,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:15,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:15,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:15,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:15,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:15,962 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:15,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:15,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677393322] [2024-09-12 18:35:15,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677393322] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:15,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:15,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:35:15,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817701794] [2024-09-12 18:35:15,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:15,963 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:35:15,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:15,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:35:15,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:15,965 INFO L87 Difference]: Start difference. First operand 591 states and 756 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:35:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:16,787 INFO L93 Difference]: Finished difference Result 834 states and 1086 transitions. [2024-09-12 18:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:35:16,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 71 [2024-09-12 18:35:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:16,790 INFO L225 Difference]: With dead ends: 834 [2024-09-12 18:35:16,791 INFO L226 Difference]: Without dead ends: 832 [2024-09-12 18:35:16,791 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:35:16,791 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 86 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:16,791 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 318 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:35:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-09-12 18:35:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 764. [2024-09-12 18:35:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 707 states have (on average 1.3578500707213579) internal successors, (960), 738 states have internal predecessors, (960), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1002 transitions. [2024-09-12 18:35:17,343 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1002 transitions. Word has length 71 [2024-09-12 18:35:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:17,343 INFO L474 AbstractCegarLoop]: Abstraction has 764 states and 1002 transitions. [2024-09-12 18:35:17,344 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:35:17,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1002 transitions. [2024-09-12 18:35:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:35:17,345 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:17,345 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:17,345 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-09-12 18:35:17,345 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:17,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash -899799122, now seen corresponding path program 1 times [2024-09-12 18:35:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:17,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7647348] [2024-09-12 18:35:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:17,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:17,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:17,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:17,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:17,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:35:17,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:17,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7647348] [2024-09-12 18:35:17,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7647348] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:17,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790450793] [2024-09-12 18:35:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:17,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:17,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:17,492 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:17,494 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:35:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:17,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:35:17,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:35:17,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:17,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790450793] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:17,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:35:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2024-09-12 18:35:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151931985] [2024-09-12 18:35:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:17,832 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:35:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:35:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:17,832 INFO L87 Difference]: Start difference. First operand 764 states and 1002 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:35:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:18,541 INFO L93 Difference]: Finished difference Result 782 states and 1019 transitions. [2024-09-12 18:35:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:35:18,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 72 [2024-09-12 18:35:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:18,545 INFO L225 Difference]: With dead ends: 782 [2024-09-12 18:35:18,545 INFO L226 Difference]: Without dead ends: 780 [2024-09-12 18:35:18,545 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:18,545 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 169 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:18,546 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 269 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:35:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-09-12 18:35:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 772. [2024-09-12 18:35:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 715 states have (on average 1.3524475524475525) internal successors, (967), 746 states have internal predecessors, (967), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1009 transitions. [2024-09-12 18:35:19,028 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1009 transitions. Word has length 72 [2024-09-12 18:35:19,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:19,029 INFO L474 AbstractCegarLoop]: Abstraction has 772 states and 1009 transitions. [2024-09-12 18:35:19,029 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:35:19,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:19,029 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1009 transitions. [2024-09-12 18:35:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:35:19,030 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:19,030 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:19,046 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:19,234 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:19,234 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:19,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1151294713, now seen corresponding path program 1 times [2024-09-12 18:35:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252289484] [2024-09-12 18:35:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:19,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:19,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159965773] [2024-09-12 18:35:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:19,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:19,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:19,249 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:19,254 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:35:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:19,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:35:19,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:19,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:19,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:19,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252289484] [2024-09-12 18:35:19,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:19,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159965773] [2024-09-12 18:35:19,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159965773] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:19,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:19,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-12 18:35:19,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972885162] [2024-09-12 18:35:19,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:19,837 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:35:19,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:19,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:35:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:35:19,838 INFO L87 Difference]: Start difference. First operand 772 states and 1009 transitions. Second operand has 16 states, 15 states have (on average 7.6) internal successors, (114), 16 states have internal predecessors, (114), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:21,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:21,624 INFO L93 Difference]: Finished difference Result 863 states and 1123 transitions. [2024-09-12 18:35:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:35:21,625 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.6) internal successors, (114), 16 states have internal predecessors, (114), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 75 [2024-09-12 18:35:21,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:21,627 INFO L225 Difference]: With dead ends: 863 [2024-09-12 18:35:21,627 INFO L226 Difference]: Without dead ends: 861 [2024-09-12 18:35:21,628 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:35:21,628 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 265 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:21,628 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 510 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:35:21,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-09-12 18:35:22,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 772. [2024-09-12 18:35:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 715 states have (on average 1.3496503496503496) internal successors, (965), 746 states have internal predecessors, (965), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1007 transitions. [2024-09-12 18:35:22,115 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1007 transitions. Word has length 75 [2024-09-12 18:35:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:22,115 INFO L474 AbstractCegarLoop]: Abstraction has 772 states and 1007 transitions. [2024-09-12 18:35:22,115 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.6) internal successors, (114), 16 states have internal predecessors, (114), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:22,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:22,115 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1007 transitions. [2024-09-12 18:35:22,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:35:22,116 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:22,116 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:22,127 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:22,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:22,316 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:22,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:22,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1696007202, now seen corresponding path program 1 times [2024-09-12 18:35:22,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:22,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518900891] [2024-09-12 18:35:22,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:22,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:22,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417071196] [2024-09-12 18:35:22,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:22,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:22,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:22,331 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:22,334 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:35:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:22,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:35:22,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:22,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:23,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518900891] [2024-09-12 18:35:23,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:23,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417071196] [2024-09-12 18:35:23,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417071196] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:23,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:23,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2024-09-12 18:35:23,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874978847] [2024-09-12 18:35:23,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:23,272 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:35:23,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:23,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:35:23,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:35:23,273 INFO L87 Difference]: Start difference. First operand 772 states and 1007 transitions. Second operand has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 20 states have internal predecessors, (120), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:35:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:24,520 INFO L93 Difference]: Finished difference Result 846 states and 1061 transitions. [2024-09-12 18:35:24,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:35:24,520 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 20 states have internal predecessors, (120), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 76 [2024-09-12 18:35:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:24,523 INFO L225 Difference]: With dead ends: 846 [2024-09-12 18:35:24,523 INFO L226 Difference]: Without dead ends: 511 [2024-09-12 18:35:24,524 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:35:24,524 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 648 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:24,524 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 490 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:35:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-09-12 18:35:24,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 483. [2024-09-12 18:35:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 432 states have (on average 1.3217592592592593) internal successors, (571), 463 states have internal predecessors, (571), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:35:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 599 transitions. [2024-09-12 18:35:24,804 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 599 transitions. Word has length 76 [2024-09-12 18:35:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:24,804 INFO L474 AbstractCegarLoop]: Abstraction has 483 states and 599 transitions. [2024-09-12 18:35:24,804 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 20 states have internal predecessors, (120), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:35:24,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:24,805 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 599 transitions. [2024-09-12 18:35:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:35:24,806 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:24,806 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:24,819 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:25,009 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:25,010 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:25,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:25,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1330397636, now seen corresponding path program 1 times [2024-09-12 18:35:25,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:25,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092529168] [2024-09-12 18:35:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:25,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110413415] [2024-09-12 18:35:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:25,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:25,024 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:25,026 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:35:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:25,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:35:25,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:25,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 18:35:25,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:25,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092529168] [2024-09-12 18:35:25,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:25,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110413415] [2024-09-12 18:35:25,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110413415] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:25,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:25,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-09-12 18:35:25,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318434869] [2024-09-12 18:35:25,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:25,842 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:35:25,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:25,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:35:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:35:25,842 INFO L87 Difference]: Start difference. First operand 483 states and 599 transitions. Second operand has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:29,675 INFO L93 Difference]: Finished difference Result 491 states and 609 transitions. [2024-09-12 18:35:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:35:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 76 [2024-09-12 18:35:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:29,678 INFO L225 Difference]: With dead ends: 491 [2024-09-12 18:35:29,678 INFO L226 Difference]: Without dead ends: 490 [2024-09-12 18:35:29,678 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:35:29,678 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 276 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:29,678 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 237 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-09-12 18:35:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-09-12 18:35:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 482. [2024-09-12 18:35:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 432 states have (on average 1.3032407407407407) internal successors, (563), 462 states have internal predecessors, (563), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:35:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 591 transitions. [2024-09-12 18:35:29,972 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 591 transitions. Word has length 76 [2024-09-12 18:35:29,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:29,972 INFO L474 AbstractCegarLoop]: Abstraction has 482 states and 591 transitions. [2024-09-12 18:35:29,972 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:29,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 591 transitions. [2024-09-12 18:35:29,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:35:29,973 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:29,973 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:29,989 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:30,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:35:30,174 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:30,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:30,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1739285652, now seen corresponding path program 1 times [2024-09-12 18:35:30,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:30,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746477303] [2024-09-12 18:35:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:30,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:30,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48677195] [2024-09-12 18:35:30,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:30,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:30,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:30,193 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:30,196 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:35:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:30,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:35:30,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:30,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 18:35:30,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746477303] [2024-09-12 18:35:30,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48677195] [2024-09-12 18:35:30,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48677195] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:30,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:30,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 17 [2024-09-12 18:35:30,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434923108] [2024-09-12 18:35:30,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:30,941 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:35:30,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:30,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:35:30,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:35:30,941 INFO L87 Difference]: Start difference. First operand 482 states and 591 transitions. Second operand has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:33,192 INFO L93 Difference]: Finished difference Result 496 states and 606 transitions. [2024-09-12 18:35:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:35:33,193 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 80 [2024-09-12 18:35:33,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:33,195 INFO L225 Difference]: With dead ends: 496 [2024-09-12 18:35:33,195 INFO L226 Difference]: Without dead ends: 491 [2024-09-12 18:35:33,195 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:35:33,195 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 246 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:33,195 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 312 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:35:33,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-09-12 18:35:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 483. [2024-09-12 18:35:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 434 states have (on average 1.294930875576037) internal successors, (562), 462 states have internal predecessors, (562), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:35:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 590 transitions. [2024-09-12 18:35:33,542 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 590 transitions. Word has length 80 [2024-09-12 18:35:33,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:33,542 INFO L474 AbstractCegarLoop]: Abstraction has 483 states and 590 transitions. [2024-09-12 18:35:33,542 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:35:33,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:33,543 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 590 transitions. [2024-09-12 18:35:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:35:33,543 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:33,543 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:33,555 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:33,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:35:33,744 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:33,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 157096389, now seen corresponding path program 1 times [2024-09-12 18:35:33,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:33,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696743721] [2024-09-12 18:35:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:33,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:35:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:33,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:33,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696743721] [2024-09-12 18:35:33,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696743721] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:33,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890829831] [2024-09-12 18:35:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:33,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:33,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:33,821 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:33,823 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:35:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:35:33,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:33,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:34,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890829831] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:34,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:34,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 18:35:34,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140836818] [2024-09-12 18:35:34,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:34,074 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:35:34,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:34,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:35:34,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:35:34,074 INFO L87 Difference]: Start difference. First operand 483 states and 590 transitions. Second operand has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:35:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:34,825 INFO L93 Difference]: Finished difference Result 523 states and 631 transitions. [2024-09-12 18:35:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:35:34,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 86 [2024-09-12 18:35:34,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:34,831 INFO L225 Difference]: With dead ends: 523 [2024-09-12 18:35:34,831 INFO L226 Difference]: Without dead ends: 522 [2024-09-12 18:35:34,831 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:35:34,831 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 110 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:34,831 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 367 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:35:34,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-09-12 18:35:35,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 487. [2024-09-12 18:35:35,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 438 states have (on average 1.2922374429223744) internal successors, (566), 466 states have internal predecessors, (566), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:35:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 594 transitions. [2024-09-12 18:35:35,187 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 594 transitions. Word has length 86 [2024-09-12 18:35:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:35,187 INFO L474 AbstractCegarLoop]: Abstraction has 487 states and 594 transitions. [2024-09-12 18:35:35,187 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:35:35,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 594 transitions. [2024-09-12 18:35:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:35:35,188 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:35,188 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:35,201 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 18:35:35,389 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:35:35,389 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:35,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:35,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1756066829, now seen corresponding path program 1 times [2024-09-12 18:35:35,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:35,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400318380] [2024-09-12 18:35:35,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:35,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 18:35:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:35,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:35,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400318380] [2024-09-12 18:35:35,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400318380] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:35,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523180082] [2024-09-12 18:35:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:35,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:35,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:35,472 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:35,474 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:35:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:35,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:35:35,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:35,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:35,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523180082] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:35,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:35,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:35:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654777518] [2024-09-12 18:35:35,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:35,685 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:35:35,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:35,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:35:35,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:35,685 INFO L87 Difference]: Start difference. First operand 487 states and 594 transitions. Second operand has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 12 states have internal predecessors, (155), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:35:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:36,554 INFO L93 Difference]: Finished difference Result 749 states and 901 transitions. [2024-09-12 18:35:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:35:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 12 states have internal predecessors, (155), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 86 [2024-09-12 18:35:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:36,557 INFO L225 Difference]: With dead ends: 749 [2024-09-12 18:35:36,557 INFO L226 Difference]: Without dead ends: 748 [2024-09-12 18:35:36,557 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:36,558 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 106 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:36,558 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 657 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:35:36,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-09-12 18:35:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 715. [2024-09-12 18:35:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 659 states have (on average 1.2549317147192716) internal successors, (827), 687 states have internal predecessors, (827), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:37,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 869 transitions. [2024-09-12 18:35:37,102 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 869 transitions. Word has length 86 [2024-09-12 18:35:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:37,103 INFO L474 AbstractCegarLoop]: Abstraction has 715 states and 869 transitions. [2024-09-12 18:35:37,103 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 12 states have internal predecessors, (155), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:35:37,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:37,103 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 869 transitions. [2024-09-12 18:35:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:35:37,104 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:37,104 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:37,119 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:35:37,304 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:35:37,305 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:37,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:37,305 INFO L85 PathProgramCache]: Analyzing trace with hash 941612743, now seen corresponding path program 1 times [2024-09-12 18:35:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:37,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054783686] [2024-09-12 18:35:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:35:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 18:35:37,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:37,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054783686] [2024-09-12 18:35:37,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054783686] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:37,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324159854] [2024-09-12 18:35:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:37,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:37,383 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:37,384 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:35:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:35:37,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:37,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:37,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324159854] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:37,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:37,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2024-09-12 18:35:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297666587] [2024-09-12 18:35:37,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:37,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:35:37,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:37,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:35:37,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:37,858 INFO L87 Difference]: Start difference. First operand 715 states and 869 transitions. Second operand has 12 states, 11 states have (on average 16.181818181818183) internal successors, (178), 12 states have internal predecessors, (178), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 18:35:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:38,933 INFO L93 Difference]: Finished difference Result 777 states and 927 transitions. [2024-09-12 18:35:38,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:35:38,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.181818181818183) internal successors, (178), 12 states have internal predecessors, (178), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 88 [2024-09-12 18:35:38,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:38,936 INFO L225 Difference]: With dead ends: 777 [2024-09-12 18:35:38,936 INFO L226 Difference]: Without dead ends: 776 [2024-09-12 18:35:38,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:35:38,936 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 535 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:38,937 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 421 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-09-12 18:35:39,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 714. [2024-09-12 18:35:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 659 states have (on average 1.244309559939302) internal successors, (820), 686 states have internal predecessors, (820), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 862 transitions. [2024-09-12 18:35:39,506 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 862 transitions. Word has length 88 [2024-09-12 18:35:39,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:39,506 INFO L474 AbstractCegarLoop]: Abstraction has 714 states and 862 transitions. [2024-09-12 18:35:39,507 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.181818181818183) internal successors, (178), 12 states have internal predecessors, (178), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 18:35:39,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 862 transitions. [2024-09-12 18:35:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 18:35:39,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:39,507 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:39,519 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 18:35:39,708 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:35:39,708 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:39,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:39,708 INFO L85 PathProgramCache]: Analyzing trace with hash -874775909, now seen corresponding path program 1 times [2024-09-12 18:35:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:39,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846292273] [2024-09-12 18:35:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:39,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:35:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:39,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:39,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846292273] [2024-09-12 18:35:39,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846292273] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:39,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344643313] [2024-09-12 18:35:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:39,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:39,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:39,833 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:39,835 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:35:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:35:39,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:40,241 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:40,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:40,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344643313] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:40,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:40,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-09-12 18:35:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693396338] [2024-09-12 18:35:40,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:40,471 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:35:40,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:35:40,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:35:40,472 INFO L87 Difference]: Start difference. First operand 714 states and 862 transitions. Second operand has 18 states, 17 states have (on average 11.529411764705882) internal successors, (196), 18 states have internal predecessors, (196), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 18:35:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:41,744 INFO L93 Difference]: Finished difference Result 789 states and 938 transitions. [2024-09-12 18:35:41,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:35:41,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.529411764705882) internal successors, (196), 18 states have internal predecessors, (196), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 89 [2024-09-12 18:35:41,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:41,747 INFO L225 Difference]: With dead ends: 789 [2024-09-12 18:35:41,747 INFO L226 Difference]: Without dead ends: 788 [2024-09-12 18:35:41,747 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:35:41,748 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 866 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:41,748 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 533 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-09-12 18:35:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 721. [2024-09-12 18:35:42,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 666 states have (on average 1.2372372372372373) internal successors, (824), 693 states have internal predecessors, (824), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:42,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 866 transitions. [2024-09-12 18:35:42,380 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 866 transitions. Word has length 89 [2024-09-12 18:35:42,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:42,380 INFO L474 AbstractCegarLoop]: Abstraction has 721 states and 866 transitions. [2024-09-12 18:35:42,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.529411764705882) internal successors, (196), 18 states have internal predecessors, (196), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 18:35:42,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 866 transitions. [2024-09-12 18:35:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 18:35:42,381 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:42,382 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:42,394 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-09-12 18:35:42,582 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:35:42,582 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:42,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:42,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1069447367, now seen corresponding path program 1 times [2024-09-12 18:35:42,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:42,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22301072] [2024-09-12 18:35:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:42,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:42,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816871758] [2024-09-12 18:35:42,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:42,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:42,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:42,608 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:42,609 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:35:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:35:42,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:42,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:43,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:43,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22301072] [2024-09-12 18:35:43,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:43,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816871758] [2024-09-12 18:35:43,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816871758] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:43,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:43,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 18:35:43,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577764007] [2024-09-12 18:35:43,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:43,438 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:35:43,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:43,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:35:43,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:35:43,439 INFO L87 Difference]: Start difference. First operand 721 states and 866 transitions. Second operand has 14 states, 13 states have (on average 10.307692307692308) internal successors, (134), 14 states have internal predecessors, (134), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:35:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:46,102 INFO L93 Difference]: Finished difference Result 735 states and 876 transitions. [2024-09-12 18:35:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:35:46,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.307692307692308) internal successors, (134), 14 states have internal predecessors, (134), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 90 [2024-09-12 18:35:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:46,105 INFO L225 Difference]: With dead ends: 735 [2024-09-12 18:35:46,105 INFO L226 Difference]: Without dead ends: 733 [2024-09-12 18:35:46,106 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:35:46,106 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 251 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:46,106 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 693 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:35:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-09-12 18:35:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 721. [2024-09-12 18:35:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 666 states have (on average 1.2297297297297298) internal successors, (819), 693 states have internal predecessors, (819), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 861 transitions. [2024-09-12 18:35:46,718 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 861 transitions. Word has length 90 [2024-09-12 18:35:46,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:46,718 INFO L474 AbstractCegarLoop]: Abstraction has 721 states and 861 transitions. [2024-09-12 18:35:46,719 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.307692307692308) internal successors, (134), 14 states have internal predecessors, (134), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:35:46,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 861 transitions. [2024-09-12 18:35:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:35:46,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:46,720 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:46,744 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 18:35:46,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:35:46,921 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:46,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:46,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1153945693, now seen corresponding path program 1 times [2024-09-12 18:35:46,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:46,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026960552] [2024-09-12 18:35:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:46,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:46,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:46,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:46,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:35:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:46,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:35:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:46,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:35:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:47,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:47,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026960552] [2024-09-12 18:35:47,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026960552] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:47,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628290898] [2024-09-12 18:35:47,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:47,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:47,003 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:47,005 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:35:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:47,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:35:47,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:47,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:47,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628290898] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:47,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:47,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:35:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098653472] [2024-09-12 18:35:47,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:47,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:35:47,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:35:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:47,199 INFO L87 Difference]: Start difference. First operand 721 states and 861 transitions. Second operand has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 12 states have internal predecessors, (166), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:35:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:48,133 INFO L93 Difference]: Finished difference Result 937 states and 1094 transitions. [2024-09-12 18:35:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:35:48,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 12 states have internal predecessors, (166), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 91 [2024-09-12 18:35:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:48,138 INFO L225 Difference]: With dead ends: 937 [2024-09-12 18:35:48,138 INFO L226 Difference]: Without dead ends: 936 [2024-09-12 18:35:48,138 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:48,139 INFO L434 NwaCegarLoop]: 106 mSDtfsCounter, 183 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:48,139 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 860 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:35:48,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-09-12 18:35:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 801. [2024-09-12 18:35:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 744 states have (on average 1.2338709677419355) internal successors, (918), 771 states have internal predecessors, (918), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 964 transitions. [2024-09-12 18:35:48,907 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 964 transitions. Word has length 91 [2024-09-12 18:35:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:48,908 INFO L474 AbstractCegarLoop]: Abstraction has 801 states and 964 transitions. [2024-09-12 18:35:48,908 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 12 states have internal predecessors, (166), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:35:48,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 964 transitions. [2024-09-12 18:35:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:35:48,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:48,909 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:48,920 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-09-12 18:35:49,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:49,109 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:49,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash -102006618, now seen corresponding path program 1 times [2024-09-12 18:35:49,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:49,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315069105] [2024-09-12 18:35:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:49,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810458945] [2024-09-12 18:35:49,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:49,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:49,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:49,125 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:49,127 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:35:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:49,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:35:49,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 18:35:49,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:50,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:50,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315069105] [2024-09-12 18:35:50,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:50,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810458945] [2024-09-12 18:35:50,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810458945] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:50,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:35:50,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:35:50,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563833378] [2024-09-12 18:35:50,726 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:50,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:35:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:50,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:35:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:35:50,727 INFO L87 Difference]: Start difference. First operand 801 states and 964 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 18:35:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:52,342 INFO L93 Difference]: Finished difference Result 804 states and 964 transitions. [2024-09-12 18:35:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:35:52,342 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 93 [2024-09-12 18:35:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:52,345 INFO L225 Difference]: With dead ends: 804 [2024-09-12 18:35:52,345 INFO L226 Difference]: Without dead ends: 802 [2024-09-12 18:35:52,346 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:35:52,346 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:52,346 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 819 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:35:52,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-09-12 18:35:53,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 801. [2024-09-12 18:35:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 744 states have (on average 1.2311827956989247) internal successors, (916), 771 states have internal predecessors, (916), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 962 transitions. [2024-09-12 18:35:53,027 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 962 transitions. Word has length 93 [2024-09-12 18:35:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:53,027 INFO L474 AbstractCegarLoop]: Abstraction has 801 states and 962 transitions. [2024-09-12 18:35:53,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 18:35:53,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:53,027 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 962 transitions. [2024-09-12 18:35:53,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:35:53,028 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:53,029 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:53,046 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:53,229 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:53,229 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:53,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1959022796, now seen corresponding path program 1 times [2024-09-12 18:35:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:53,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636523216] [2024-09-12 18:35:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:53,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:53,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348676634] [2024-09-12 18:35:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:53,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:53,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:53,257 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:53,258 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:35:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:53,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:35:53,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:35:53,869 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:54,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:54,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636523216] [2024-09-12 18:35:54,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:54,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348676634] [2024-09-12 18:35:54,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348676634] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:54,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:35:54,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:35:54,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457796219] [2024-09-12 18:35:54,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:54,542 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:35:54,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:54,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:35:54,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:35:54,543 INFO L87 Difference]: Start difference. First operand 801 states and 962 transitions. Second operand has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 18:35:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:55,681 INFO L93 Difference]: Finished difference Result 802 states and 962 transitions. [2024-09-12 18:35:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:35:55,682 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 97 [2024-09-12 18:35:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:55,685 INFO L225 Difference]: With dead ends: 802 [2024-09-12 18:35:55,685 INFO L226 Difference]: Without dead ends: 799 [2024-09-12 18:35:55,685 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:35:55,685 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 147 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:55,686 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 563 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:55,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-09-12 18:35:56,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 692. [2024-09-12 18:35:56,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 639 states have (on average 1.1987480438184663) internal successors, (766), 664 states have internal predecessors, (766), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:35:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 808 transitions. [2024-09-12 18:35:56,269 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 808 transitions. Word has length 97 [2024-09-12 18:35:56,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:56,270 INFO L474 AbstractCegarLoop]: Abstraction has 692 states and 808 transitions. [2024-09-12 18:35:56,270 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 18:35:56,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 808 transitions. [2024-09-12 18:35:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:35:56,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:56,271 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:56,283 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:35:56,471 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:56,471 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:35:56,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:56,472 INFO L85 PathProgramCache]: Analyzing trace with hash 560934634, now seen corresponding path program 1 times [2024-09-12 18:35:56,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:56,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088000624] [2024-09-12 18:35:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:56,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:56,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582438427] [2024-09-12 18:35:56,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:56,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:56,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:56,487 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:56,489 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:35:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:56,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:35:56,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:35:56,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:35:58,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:58,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088000624] [2024-09-12 18:35:58,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:58,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582438427] [2024-09-12 18:35:58,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582438427] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:58,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:58,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-09-12 18:35:58,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267077219] [2024-09-12 18:35:58,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:58,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 18:35:58,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:58,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 18:35:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:35:58,629 INFO L87 Difference]: Start difference. First operand 692 states and 808 transitions. Second operand has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 23 states have internal predecessors, (157), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 18:36:05,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:05,668 INFO L93 Difference]: Finished difference Result 848 states and 989 transitions. [2024-09-12 18:36:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 18:36:05,669 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 23 states have internal predecessors, (157), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 97 [2024-09-12 18:36:05,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:05,672 INFO L225 Difference]: With dead ends: 848 [2024-09-12 18:36:05,672 INFO L226 Difference]: Without dead ends: 846 [2024-09-12 18:36:05,672 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=534, Invalid=2222, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:36:05,672 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 1034 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:05,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 697 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-09-12 18:36:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-09-12 18:36:06,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 766. [2024-09-12 18:36:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 711 states have (on average 1.191279887482419) internal successors, (847), 736 states have internal predecessors, (847), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 893 transitions. [2024-09-12 18:36:06,346 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 893 transitions. Word has length 97 [2024-09-12 18:36:06,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:06,347 INFO L474 AbstractCegarLoop]: Abstraction has 766 states and 893 transitions. [2024-09-12 18:36:06,347 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 23 states have internal predecessors, (157), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 18:36:06,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 893 transitions. [2024-09-12 18:36:06,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:36:06,348 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:06,348 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:06,361 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:06,548 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:36:06,549 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:06,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash -972894031, now seen corresponding path program 1 times [2024-09-12 18:36:06,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:06,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206734036] [2024-09-12 18:36:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:36:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:36:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:36:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:06,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:06,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206734036] [2024-09-12 18:36:06,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206734036] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:06,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965957360] [2024-09-12 18:36:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:06,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:06,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:06,696 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:06,698 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:36:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:06,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:36:06,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:06,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:07,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965957360] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:07,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:36:07,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-09-12 18:36:07,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880990092] [2024-09-12 18:36:07,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:07,137 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 18:36:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:07,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 18:36:07,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:36:07,139 INFO L87 Difference]: Start difference. First operand 766 states and 893 transitions. Second operand has 23 states, 22 states have (on average 10.227272727272727) internal successors, (225), 23 states have internal predecessors, (225), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 18:36:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:08,497 INFO L93 Difference]: Finished difference Result 789 states and 920 transitions. [2024-09-12 18:36:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:36:08,498 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.227272727272727) internal successors, (225), 23 states have internal predecessors, (225), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 100 [2024-09-12 18:36:08,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:08,500 INFO L225 Difference]: With dead ends: 789 [2024-09-12 18:36:08,500 INFO L226 Difference]: Without dead ends: 788 [2024-09-12 18:36:08,501 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:36:08,501 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 226 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:08,501 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 715 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:36:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-09-12 18:36:09,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 775. [2024-09-12 18:36:09,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 720 states have (on average 1.1902777777777778) internal successors, (857), 745 states have internal predecessors, (857), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 903 transitions. [2024-09-12 18:36:09,180 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 903 transitions. Word has length 100 [2024-09-12 18:36:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:09,180 INFO L474 AbstractCegarLoop]: Abstraction has 775 states and 903 transitions. [2024-09-12 18:36:09,180 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.227272727272727) internal successors, (225), 23 states have internal predecessors, (225), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 18:36:09,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 903 transitions. [2024-09-12 18:36:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:36:09,181 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:09,181 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:09,193 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:09,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:09,381 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:09,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:09,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1046584314, now seen corresponding path program 1 times [2024-09-12 18:36:09,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:09,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188622965] [2024-09-12 18:36:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:09,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:36:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:36:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:36:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:09,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:09,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188622965] [2024-09-12 18:36:09,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188622965] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:09,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061654284] [2024-09-12 18:36:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:09,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:09,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:09,472 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:09,473 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:36:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:09,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:36:09,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:09,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:09,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061654284] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:09,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:09,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-09-12 18:36:09,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184258447] [2024-09-12 18:36:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:09,634 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:36:09,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:09,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:36:09,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:36:09,635 INFO L87 Difference]: Start difference. First operand 775 states and 903 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:36:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:10,456 INFO L93 Difference]: Finished difference Result 775 states and 903 transitions. [2024-09-12 18:36:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:36:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-09-12 18:36:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:10,459 INFO L225 Difference]: With dead ends: 775 [2024-09-12 18:36:10,459 INFO L226 Difference]: Without dead ends: 774 [2024-09-12 18:36:10,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:36:10,459 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 57 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:10,459 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 297 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:36:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2024-09-12 18:36:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2024-09-12 18:36:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 720 states have (on average 1.1888888888888889) internal successors, (856), 744 states have internal predecessors, (856), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 902 transitions. [2024-09-12 18:36:11,236 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 902 transitions. Word has length 103 [2024-09-12 18:36:11,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:11,236 INFO L474 AbstractCegarLoop]: Abstraction has 774 states and 902 transitions. [2024-09-12 18:36:11,236 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:36:11,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:11,236 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 902 transitions. [2024-09-12 18:36:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:36:11,237 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:11,237 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:11,254 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 18:36:11,437 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:11,438 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:11,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:11,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1915624821, now seen corresponding path program 1 times [2024-09-12 18:36:11,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:11,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934572903] [2024-09-12 18:36:11,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:11,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:11,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308348462] [2024-09-12 18:36:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:11,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:11,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:11,456 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:11,457 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:36:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:36:11,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:12,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:17,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:17,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934572903] [2024-09-12 18:36:17,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:17,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308348462] [2024-09-12 18:36:17,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308348462] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:17,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:17,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2024-09-12 18:36:17,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769433543] [2024-09-12 18:36:17,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:17,986 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:36:17,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:17,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:36:17,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:36:17,986 INFO L87 Difference]: Start difference. First operand 774 states and 902 transitions. Second operand has 25 states, 24 states have (on average 6.75) internal successors, (162), 25 states have internal predecessors, (162), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:36:21,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:21,490 INFO L93 Difference]: Finished difference Result 793 states and 925 transitions. [2024-09-12 18:36:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:36:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.75) internal successors, (162), 25 states have internal predecessors, (162), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 104 [2024-09-12 18:36:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:21,494 INFO L225 Difference]: With dead ends: 793 [2024-09-12 18:36:21,495 INFO L226 Difference]: Without dead ends: 792 [2024-09-12 18:36:21,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=378, Invalid=954, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 18:36:21,495 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 161 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:21,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 436 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 18:36:21,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-09-12 18:36:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 787. [2024-09-12 18:36:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 733 states have (on average 1.189631650750341) internal successors, (872), 757 states have internal predecessors, (872), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 918 transitions. [2024-09-12 18:36:22,299 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 918 transitions. Word has length 104 [2024-09-12 18:36:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:22,300 INFO L474 AbstractCegarLoop]: Abstraction has 787 states and 918 transitions. [2024-09-12 18:36:22,300 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.75) internal successors, (162), 25 states have internal predecessors, (162), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:36:22,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 918 transitions. [2024-09-12 18:36:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:36:22,301 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:22,301 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:22,319 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:22,502 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:36:22,502 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:22,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1252761315, now seen corresponding path program 1 times [2024-09-12 18:36:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:22,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109540431] [2024-09-12 18:36:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:22,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115008921] [2024-09-12 18:36:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:22,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:22,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:22,533 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:22,539 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:36:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:22,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:36:22,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:36:23,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:36:23,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:23,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109540431] [2024-09-12 18:36:23,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:23,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115008921] [2024-09-12 18:36:23,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115008921] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:23,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:23,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-09-12 18:36:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551357628] [2024-09-12 18:36:23,997 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:23,998 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:36:23,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:23,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:36:23,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:36:23,999 INFO L87 Difference]: Start difference. First operand 787 states and 918 transitions. Second operand has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 24 states have internal predecessors, (174), 8 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 18:36:26,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:26,495 INFO L93 Difference]: Finished difference Result 797 states and 927 transitions. [2024-09-12 18:36:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:36:26,495 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 24 states have internal predecessors, (174), 8 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 108 [2024-09-12 18:36:26,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:26,498 INFO L225 Difference]: With dead ends: 797 [2024-09-12 18:36:26,498 INFO L226 Difference]: Without dead ends: 765 [2024-09-12 18:36:26,498 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:36:26,498 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 206 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:26,498 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 561 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:36:26,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-09-12 18:36:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2024-09-12 18:36:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 711 states have (on average 1.191279887482419) internal successors, (847), 735 states have internal predecessors, (847), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:27,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 893 transitions. [2024-09-12 18:36:27,211 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 893 transitions. Word has length 108 [2024-09-12 18:36:27,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:27,211 INFO L474 AbstractCegarLoop]: Abstraction has 765 states and 893 transitions. [2024-09-12 18:36:27,211 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 24 states have internal predecessors, (174), 8 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 18:36:27,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 893 transitions. [2024-09-12 18:36:27,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:36:27,212 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:27,212 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:27,224 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:27,413 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:36:27,413 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:27,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:27,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1777500820, now seen corresponding path program 1 times [2024-09-12 18:36:27,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:27,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967387150] [2024-09-12 18:36:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:27,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:36:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:36:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:36:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:36:27,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:27,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967387150] [2024-09-12 18:36:27,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967387150] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:27,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579409552] [2024-09-12 18:36:27,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:27,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:27,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:27,574 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:27,576 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:36:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:27,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:36:27,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:36:27,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 28 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:36:28,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579409552] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:28,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:36:28,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-09-12 18:36:28,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224244130] [2024-09-12 18:36:28,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:28,253 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:36:28,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:28,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:36:28,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:36:28,254 INFO L87 Difference]: Start difference. First operand 765 states and 893 transitions. Second operand has 20 states, 19 states have (on average 13.578947368421053) internal successors, (258), 20 states have internal predecessors, (258), 8 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 10 states have call predecessors, (12), 8 states have call successors, (12) [2024-09-12 18:36:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:29,819 INFO L93 Difference]: Finished difference Result 904 states and 1056 transitions. [2024-09-12 18:36:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:36:29,820 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 13.578947368421053) internal successors, (258), 20 states have internal predecessors, (258), 8 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 10 states have call predecessors, (12), 8 states have call successors, (12) Word has length 107 [2024-09-12 18:36:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:29,823 INFO L225 Difference]: With dead ends: 904 [2024-09-12 18:36:29,823 INFO L226 Difference]: Without dead ends: 901 [2024-09-12 18:36:29,823 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:36:29,823 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 490 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:29,823 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 623 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:36:29,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-09-12 18:36:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 851. [2024-09-12 18:36:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 796 states have (on average 1.1809045226130652) internal successors, (940), 819 states have internal predecessors, (940), 26 states have call successors, (26), 7 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:36:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 990 transitions. [2024-09-12 18:36:30,651 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 990 transitions. Word has length 107 [2024-09-12 18:36:30,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:30,651 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 990 transitions. [2024-09-12 18:36:30,651 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 13.578947368421053) internal successors, (258), 20 states have internal predecessors, (258), 8 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 10 states have call predecessors, (12), 8 states have call successors, (12) [2024-09-12 18:36:30,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:30,651 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 990 transitions. [2024-09-12 18:36:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 18:36:30,652 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:30,652 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:30,664 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 18:36:30,852 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:30,853 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:30,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:30,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1274077022, now seen corresponding path program 1 times [2024-09-12 18:36:30,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:30,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728711124] [2024-09-12 18:36:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:30,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:30,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924924531] [2024-09-12 18:36:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:30,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:30,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:30,874 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:30,877 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:36:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:30,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 18:36:30,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:36:31,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:32,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:32,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728711124] [2024-09-12 18:36:32,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:32,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924924531] [2024-09-12 18:36:32,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924924531] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:32,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:32,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 18:36:32,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37927620] [2024-09-12 18:36:32,472 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:32,472 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:36:32,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:32,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:36:32,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:36:32,472 INFO L87 Difference]: Start difference. First operand 851 states and 990 transitions. Second operand has 17 states, 16 states have (on average 6.0625) internal successors, (97), 17 states have internal predecessors, (97), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:36:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:34,085 INFO L93 Difference]: Finished difference Result 864 states and 1000 transitions. [2024-09-12 18:36:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:36:34,085 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.0625) internal successors, (97), 17 states have internal predecessors, (97), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 111 [2024-09-12 18:36:34,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:34,088 INFO L225 Difference]: With dead ends: 864 [2024-09-12 18:36:34,088 INFO L226 Difference]: Without dead ends: 858 [2024-09-12 18:36:34,089 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:36:34,089 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 208 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:34,089 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 879 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:36:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-09-12 18:36:34,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 847. [2024-09-12 18:36:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 792 states have (on average 1.1792929292929293) internal successors, (934), 815 states have internal predecessors, (934), 26 states have call successors, (26), 7 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:36:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 984 transitions. [2024-09-12 18:36:34,907 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 984 transitions. Word has length 111 [2024-09-12 18:36:34,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:34,907 INFO L474 AbstractCegarLoop]: Abstraction has 847 states and 984 transitions. [2024-09-12 18:36:34,907 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.0625) internal successors, (97), 17 states have internal predecessors, (97), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:36:34,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 984 transitions. [2024-09-12 18:36:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 18:36:34,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:34,909 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:34,926 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:35,113 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:35,114 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:35,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash 256491171, now seen corresponding path program 1 times [2024-09-12 18:36:35,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:35,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481847726] [2024-09-12 18:36:35,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:35,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:36:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:36:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:36:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:36:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:35,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:35,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481847726] [2024-09-12 18:36:35,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481847726] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:35,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627006907] [2024-09-12 18:36:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:35,388 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:35,401 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:36:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:35,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:36:35,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:35,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:36,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627006907] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:36,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:36:36,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-09-12 18:36:36,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683922320] [2024-09-12 18:36:36,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:36,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:36:36,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:36,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:36:36,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:36:36,213 INFO L87 Difference]: Start difference. First operand 847 states and 984 transitions. Second operand has 26 states, 26 states have (on average 10.192307692307692) internal successors, (265), 26 states have internal predecessors, (265), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 18:36:38,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:38,106 INFO L93 Difference]: Finished difference Result 883 states and 1017 transitions. [2024-09-12 18:36:38,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:36:38,107 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.192307692307692) internal successors, (265), 26 states have internal predecessors, (265), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 125 [2024-09-12 18:36:38,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:38,111 INFO L225 Difference]: With dead ends: 883 [2024-09-12 18:36:38,111 INFO L226 Difference]: Without dead ends: 831 [2024-09-12 18:36:38,112 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=262, Invalid=1718, Unknown=0, NotChecked=0, Total=1980 [2024-09-12 18:36:38,112 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 165 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:38,112 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 925 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:36:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-09-12 18:36:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 829. [2024-09-12 18:36:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 774 states have (on average 1.1795865633074936) internal successors, (913), 797 states have internal predecessors, (913), 26 states have call successors, (26), 7 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:36:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 963 transitions. [2024-09-12 18:36:38,988 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 963 transitions. Word has length 125 [2024-09-12 18:36:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:38,988 INFO L474 AbstractCegarLoop]: Abstraction has 829 states and 963 transitions. [2024-09-12 18:36:38,989 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.192307692307692) internal successors, (265), 26 states have internal predecessors, (265), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 18:36:38,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 963 transitions. [2024-09-12 18:36:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-09-12 18:36:38,989 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:38,989 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:39,002 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:39,191 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:39,191 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:39,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:39,191 INFO L85 PathProgramCache]: Analyzing trace with hash 355803600, now seen corresponding path program 1 times [2024-09-12 18:36:39,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:39,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244891156] [2024-09-12 18:36:39,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:39,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:39,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555078932] [2024-09-12 18:36:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:39,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:39,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:39,207 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:39,208 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:36:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:36:39,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:39,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:40,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:40,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244891156] [2024-09-12 18:36:40,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:40,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555078932] [2024-09-12 18:36:40,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555078932] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:40,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:40,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:36:40,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509059594] [2024-09-12 18:36:40,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:40,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:36:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:36:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:36:40,815 INFO L87 Difference]: Start difference. First operand 829 states and 963 transitions. Second operand has 22 states, 21 states have (on average 9.333333333333334) internal successors, (196), 22 states have internal predecessors, (196), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 18:36:49,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:49,887 INFO L93 Difference]: Finished difference Result 991 states and 1146 transitions. [2024-09-12 18:36:49,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:36:49,887 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.333333333333334) internal successors, (196), 22 states have internal predecessors, (196), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 126 [2024-09-12 18:36:49,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:49,891 INFO L225 Difference]: With dead ends: 991 [2024-09-12 18:36:49,891 INFO L226 Difference]: Without dead ends: 990 [2024-09-12 18:36:49,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=260, Invalid=1462, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 18:36:49,892 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 281 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:49,892 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1078 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-09-12 18:36:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-09-12 18:36:50,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 935. [2024-09-12 18:36:50,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 877 states have (on average 1.1892816419612315) internal successors, (1043), 900 states have internal predecessors, (1043), 29 states have call successors, (29), 7 states have call predecessors, (29), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:36:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1099 transitions. [2024-09-12 18:36:50,834 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1099 transitions. Word has length 126 [2024-09-12 18:36:50,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:50,834 INFO L474 AbstractCegarLoop]: Abstraction has 935 states and 1099 transitions. [2024-09-12 18:36:50,834 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.333333333333334) internal successors, (196), 22 states have internal predecessors, (196), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 18:36:50,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1099 transitions. [2024-09-12 18:36:50,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-09-12 18:36:50,835 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:50,835 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:50,853 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:51,035 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:51,036 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:51,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash -234080975, now seen corresponding path program 1 times [2024-09-12 18:36:51,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:51,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060637500] [2024-09-12 18:36:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:51,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:51,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309213964] [2024-09-12 18:36:51,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:51,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:51,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:51,054 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:51,059 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:36:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:36:51,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 18:36:51,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 18:36:52,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:52,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060637500] [2024-09-12 18:36:52,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309213964] [2024-09-12 18:36:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309213964] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:52,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:52,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-09-12 18:36:52,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974912605] [2024-09-12 18:36:52,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:52,905 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:36:52,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:52,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:36:52,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:36:52,906 INFO L87 Difference]: Start difference. First operand 935 states and 1099 transitions. Second operand has 29 states, 28 states have (on average 7.5) internal successors, (210), 29 states have internal predecessors, (210), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2024-09-12 18:36:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:58,361 INFO L93 Difference]: Finished difference Result 995 states and 1160 transitions. [2024-09-12 18:36:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 18:36:58,361 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 7.5) internal successors, (210), 29 states have internal predecessors, (210), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) Word has length 129 [2024-09-12 18:36:58,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:58,364 INFO L225 Difference]: With dead ends: 995 [2024-09-12 18:36:58,365 INFO L226 Difference]: Without dead ends: 994 [2024-09-12 18:36:58,365 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=410, Invalid=2452, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 18:36:58,365 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 420 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:58,366 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 940 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:36:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-09-12 18:36:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 944. [2024-09-12 18:36:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 886 states have (on average 1.193002257336343) internal successors, (1057), 909 states have internal predecessors, (1057), 29 states have call successors, (29), 7 states have call predecessors, (29), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:36:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1113 transitions. [2024-09-12 18:36:59,348 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1113 transitions. Word has length 129 [2024-09-12 18:36:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:59,348 INFO L474 AbstractCegarLoop]: Abstraction has 944 states and 1113 transitions. [2024-09-12 18:36:59,349 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 7.5) internal successors, (210), 29 states have internal predecessors, (210), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2024-09-12 18:36:59,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1113 transitions. [2024-09-12 18:36:59,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 18:36:59,350 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:59,350 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:59,369 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:59,551 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:59,552 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:36:59,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1942894273, now seen corresponding path program 1 times [2024-09-12 18:36:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:59,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110062281] [2024-09-12 18:36:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:59,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:36:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 18:36:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:36:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:36:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 40 proven. 69 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:59,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110062281] [2024-09-12 18:36:59,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110062281] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931033011] [2024-09-12 18:36:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:59,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:59,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:59,693 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:59,695 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:36:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:59,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:36:59,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 40 proven. 69 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:36:59,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:00,021 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 40 proven. 69 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:37:00,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931033011] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:00,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:37:00,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-09-12 18:37:00,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991060923] [2024-09-12 18:37:00,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:00,022 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:37:00,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:37:00,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:37:00,023 INFO L87 Difference]: Start difference. First operand 944 states and 1113 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:37:01,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:01,117 INFO L93 Difference]: Finished difference Result 1192 states and 1402 transitions. [2024-09-12 18:37:01,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:37:01,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 133 [2024-09-12 18:37:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:01,121 INFO L225 Difference]: With dead ends: 1192 [2024-09-12 18:37:01,121 INFO L226 Difference]: Without dead ends: 815 [2024-09-12 18:37:01,122 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 275 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:37:01,122 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 82 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:01,123 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 460 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:37:01,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-09-12 18:37:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 794. [2024-09-12 18:37:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 740 states have (on average 1.1905405405405405) internal successors, (881), 763 states have internal predecessors, (881), 25 states have call successors, (25), 7 states have call predecessors, (25), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:37:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 929 transitions. [2024-09-12 18:37:01,942 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 929 transitions. Word has length 133 [2024-09-12 18:37:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:01,942 INFO L474 AbstractCegarLoop]: Abstraction has 794 states and 929 transitions. [2024-09-12 18:37:01,942 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 18:37:01,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 929 transitions. [2024-09-12 18:37:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 18:37:01,944 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:01,944 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:01,956 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:37:02,144 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-09-12 18:37:02,144 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:37:02,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:02,145 INFO L85 PathProgramCache]: Analyzing trace with hash 645016151, now seen corresponding path program 1 times [2024-09-12 18:37:02,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:02,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027805809] [2024-09-12 18:37:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:02,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693063720] [2024-09-12 18:37:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:02,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:02,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:02,163 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:37:02,165 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:37:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:02,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 18:37:02,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 18:37:02,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 18:37:08,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:08,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027805809] [2024-09-12 18:37:08,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:08,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693063720] [2024-09-12 18:37:08,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693063720] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:08,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:08,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2024-09-12 18:37:08,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091978855] [2024-09-12 18:37:08,580 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:08,580 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 18:37:08,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 18:37:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:37:08,581 INFO L87 Difference]: Start difference. First operand 794 states and 929 transitions. Second operand has 34 states, 33 states have (on average 6.7272727272727275) internal successors, (222), 34 states have internal predecessors, (222), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2024-09-12 18:37:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:18,214 INFO L93 Difference]: Finished difference Result 857 states and 989 transitions. [2024-09-12 18:37:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 18:37:18,215 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.7272727272727275) internal successors, (222), 34 states have internal predecessors, (222), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) Word has length 135 [2024-09-12 18:37:18,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:18,217 INFO L225 Difference]: With dead ends: 857 [2024-09-12 18:37:18,217 INFO L226 Difference]: Without dead ends: 840 [2024-09-12 18:37:18,218 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=804, Invalid=4308, Unknown=0, NotChecked=0, Total=5112 [2024-09-12 18:37:18,218 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 726 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:18,218 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 825 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-09-12 18:37:18,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-09-12 18:37:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 768. [2024-09-12 18:37:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 714 states have (on average 1.1904761904761905) internal successors, (850), 737 states have internal predecessors, (850), 25 states have call successors, (25), 7 states have call predecessors, (25), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:37:19,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 898 transitions. [2024-09-12 18:37:19,125 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 898 transitions. Word has length 135 [2024-09-12 18:37:19,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:19,125 INFO L474 AbstractCegarLoop]: Abstraction has 768 states and 898 transitions. [2024-09-12 18:37:19,125 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.7272727272727275) internal successors, (222), 34 states have internal predecessors, (222), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2024-09-12 18:37:19,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 898 transitions. [2024-09-12 18:37:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-09-12 18:37:19,127 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:19,127 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:19,145 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-09-12 18:37:19,327 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:19,327 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:37:19,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash -933518386, now seen corresponding path program 2 times [2024-09-12 18:37:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:19,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254376853] [2024-09-12 18:37:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:19,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498475714] [2024-09-12 18:37:19,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:37:19,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:19,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:19,343 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:37:19,344 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:37:19,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:37:19,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:37:19,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:37:19,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 6 proven. 117 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 18:37:55,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:57,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:57,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254376853] [2024-09-12 18:37:57,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:57,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498475714] [2024-09-12 18:37:57,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498475714] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:37:57,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:37:57,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-09-12 18:37:57,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642272113] [2024-09-12 18:37:57,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:57,068 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:37:57,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:57,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:37:57,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=573, Unknown=1, NotChecked=0, Total=650 [2024-09-12 18:37:57,068 INFO L87 Difference]: Start difference. First operand 768 states and 898 transitions. Second operand has 22 states, 21 states have (on average 5.714285714285714) internal successors, (120), 22 states have internal predecessors, (120), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:37:59,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:05,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:07,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:10,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:15,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:19,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:23,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:38:38,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]